In 2009, director J.J. Abrams helped to successfully relaunch the “Star Trek” franchise, and his reboot remains an immensely entertaining adventure movie. Although its sequel, “Star Trek Into Darkness,” is not without its moments, it’s a disappointing follow-up that’s held back by some unfortunate twists and a misjudged villain. The film hardly slowed down this now 50-year-old franchise, however, which returns to the big screen with “Star Trek Beyond.” The Justin Lin-directed sequel quickly gets the crew back on track by delivering a very entertaining and often kind-hearted summer movie.

Captain James T. Kirk (Chris Pine) is tired of his five-year mission to seek out new life and explore new worlds. While on a diplomatic assignment with fellow crew members Spock (Zachary Quinto), Uhura (Zoe Saldana), Doctor “Bones” McCoy (Karl Urban), Sulu (John Cho), Chekov (Anton Yelchin) and Montgomery Scott (Simon Pegg), Kirk presents an alien species with a peace offering from the Federation. The gift is part of a deadly ancient weapon called the Abronath, but he has no clue what it is or what it’s capable of. Krall (Idris Elba), on the other hand, knows exactly what it can do. The face-changing villain is against everything the Federation stands for, so he dupes the Enterprise crew into going on a “rescue mission” to a distant planet, where he attacks them, leaving the crew completely torn apart. Even though they’re outnumbered and outmatched, Kirk and the gang are not alone in their fight against Krall, joining forces with an alien warrior named Jaylah (Sofia Boutella, who turns out to be a great addition to the series) to stop him from unleashing the Abronath.

The biggest draw of this rebooted series continues to be the cast. This time around, though, the film is less focused on Kirk and Spock. Screenwriters Doug Jung and Simon Pegg rip the team in half, forcing some crew members to band together that we’re not accustomed to seeing interact. Spock and Bones, for example, often traded witty remarks with each other in Abrams’ films, but they haven’t done much else. The two characters couldn’t be more different, yet in “Star Trek Beyond,” they have the best scene in the movie; they’re simply talking in a cave, finding common ground and joking like friends do. It’s a genuinely warm, sweet and funny scene – a sincere tone that the film nails. We get to see a whole new side of some of these established characters as a result.

Some “Star Trek” fans feared that director Justin Lin would turn the franchise into something it’s not, merely because he directed a few “Fast and Furious” movies. That fear couldn’t have been any more off-base. He handles the character moments as gracefully, if not more so, than all the set pieces, which are often quite massive and intricate. There is an exhilarating third act chase – which, story-wise, doesn’t add up with total clarity – where all the moving pieces and characters come together in this massive environment. How Lin, cinematographer Stephen F. Windon and the second-unit team create a clear sense of geography is impressive, and the same goes for the film’s other large-scale sequences. The hand-to-hand combat scenes are less thrilling, as they’re often shot too up close or in really dark environments.

Additionally, the movie runs into some trouble with its villain, an area where this rebooted series has struggled. Idris Elba is an imposing presence as Krall, but the problem with the character is that, without spoiling anything, he doesn’t gain any depth until the third act. Information is revealed about the character that gives new meaning to his role, and it’s a fascinating turn that should add more dimensions to the character. And yet, by the end, it feels like it’s too late to turn him into anything other than a routine villain. The character is serviceable, but he’s not as engaging to follow as our heroes.

“Star Trek Beyond” is also a summer movie with an actual ending. As a franchise film, the sequel is refreshingly self-contained, not worried about the future of the series. There’s hardly any bloat or tangents to set up future films; it’s just an efficient, mostly character-driven action movie focused on the story and characters at hand. The crew is taken to new places – asking new questions and facing new struggles – but they’re still their charming old selves, and they remain as fun to watch as Lin’s giddy set pieces.

Robin Tunney (Ep. 1.1, “Pilot”)
Character: a kindergarten teacher who becomes dysphasic and starts having seizures. Turns out she’s invested with tapeworms.

Sam Trammell (Ep. 1.4, “Maternity”)
Character: the father of a baby girl that’s not even out of the maternity ward and already on death’s door from a virus.

Elizabeth Mitchell (Ep. 1.5, “Damned If you Don’t”)
Character: a nun who looks like she’s suffering from stigmata but is later discovered to be suffering an allergic reaction to a copper cross IUD left over from her, uh, wilder days.

Dominic Purcell (Ep. 1.6, “Fidelity”)
Character: a husband whose wife – the Patient of the Week – turns out to have been unfaithful.

Amanda Seyfried (Ep. 1.11, “Detox”)
Character: girlfriend to the Patient of the Week.

Scott Foley (Ep. 1.12, “Sports Medicine”)
Character: a baseball player suffering cadmium poisoning from all the pot he’s been smoking.

Joe Morton (Ep. 1.17, “Role Model”)
Character: a senator suffering the after-effects of an epilepsy treatment from childhood

John Cho (Ep. 1.20, “Love Hurts”)
Character: a guy who, after spilling apple juice on House’s clothes, ends up being diagnosed by him as having had a stroke. Upon further investigation, it’s determined that he has a trauma-induced aneurysm as a result of a preference for sadomasochism.

Carmen Electra (Ep. 1.21, “Three Stories”)
Character: While begrudgingly lecturing a classroom of medical students about a past patient who is depicted as looking like Carmen Electra playing miniature golf. In reality, the patient was actually a male golfer…and he played regular golf, by the way. (Who knew miniature golf could be so sexy?)

LL Cool J (Ep.2.1, “Acceptance”)
Character: a death-row inmate suffering from pheochromocytoma.

Ron Livingston (Ep. 2.4, “TB or Not TB”)
Character: a famous doctor who thinks he has tuberculosis. He doesn’t. It’s actually a tumor and a pancreas problem.

Taraji P. Henson (Ep. 2.6, “Spin”)
Character: the publicist for a famous bicyclist.

Cynthia Nixon (Ep. 2.9, “Deception”)
Character: an anemic woman who turns out to suffer from Münchausen’s syndrome.

Elle Fanning (Ep. 2.11, “Need to Know”)
Character: a little girl whose mom is swiping her Ritalin.

Howard Hesseman (Ep. 2.14, “Sex Kills”)
Character: a man who, in addition to suffering from a brain infection, is also sleeping with his ex-wife, who’s estranged from their daughter. It’s a family affair!

Michelle Trachtenberg (Ep. 2.16, “Safe”)
Character: a teenage girl who, in addition to having survived a car accident only by having a heart transplant, ends up suffering from an acute case of Tick in the Vagina. I only wish I was joking.

Jayma Mays (Ep. 2.18, “Sleeping Dogs Lie”)
Character: a poor, sweet girl who’s contracted bubonic plague through the fleas of her dog.

Thomas Dekker (Ep. 2.19, “House vs. God”)
Character: a faith healer who, rather embarrassingly, turns out to be suffering from a nasty case of herpes.

William Katt (Ep. 2.19, “House vs. God”)
Character: the father of the aforementioned faith healer.

D.B. Sweeney (Ep. 2.23, “Who’s Your Daddy?”)
Character: an old buddy of House’s who finds himself in the midst of a Katrina-related paternity situation.

Elias Koteas (Ep. 2.24, “No Reason”)
Character: a former patient of House’s who’s so disgruntled that he storms into the hospital and promptly shoots House twice. Which, really, isn’t all that surprising.

Kathleen Quinlan (Ep. 3.1, “Meaning”)
Character: the wife of a brain cancer surgery patient who’s paralyzed and in a wheelchair.

Sheryl Lee (Ep. 3.2, “Cane and Able”)
Character: the mother of a seven-year-old boy suffering from rectal bleeding and claims of being tortured by aliens.

Joel Grey (Ep. 3.3, “Informed Consent”)
Character: a noted cancer doctor who, as a result of suffering from the disease himself, begs House for euthanasia.

John Larroquette (Ep. 3.7, “Son of Coma Guy”)
Character: a gentleman in a vegetative state who, thanks to a cocktail of L-Dopa and amphetamines, is awakened long enough to reconnect with his son.

Patrick Fugit (Ep. 3.8, “Whac-A-Mole”)
Character: an 18-year-old who has a heart attack because, as it turns out, he needs a bone marrow transplant.

Meagan Good (Ep. 3.11, “Words and Deeds”)
Character: a firefighter who stands beside one of her medically-challenged coworkers

Dave Matthews (Ep. 3.15, “Half-Wit”)
Character: a pianist deals with a neurological condition which may impair his ability to play.

Kurtwood Smith (Ep. 3.15, “Half-Wit”)
Character: the father of the aforementioned pianist.

Marc Blucas (Ep. 3.16, “Top Secret”)
Character: a veteran who claims to have a nasty case of Gulf War Syndrome but is actually stuck with hereditary hemorrhagic telangiectasia instead.

Bailee Madison (Ep. 3.19, “Act Your Age”)
Character: a six-year-old who’s been affected by their father’s sexual-enhancement cream and, as a result, is going through puberty early.

Lyndsy Fonseca (Ep. 3.22, “Resignation”)
Character: a 19-year-old martial artist drinks drain cleaner and then pretends she hasn’t.

Piper Perabo (Ep. 3.22, “Resignation”)
Character: a vegan and nutritionist who thinks House is interested in her for a job and then gets upset when she realizes it’s more about her, uh, other assets.

Frank Whaley (Ep. 4.5, “Mirror, Mirror”)
Character: a mystery man who comes into the hospital and claims to have numerous symptoms while also suffering from some real ones.

Jeremy Renner (Ep. 4.9, “Games”)
Character: a grunge rocker whose addition to heroin is the least of his problems.

Mira Sorvino (Ep. 4.11, “Frozen”)
Character: a researcher in Antarctica who has to be diagnosed by House via webcam.

Felicia Day (Ep. 5.2, “Not Cancer”)
Character: a teacher who had a corneal transplant and is now dealing with a major brain problem.

Breckin Meyer (Ep. 5.3, “Adverse Events”)
Character: an artist who suffers from a gastrointestinal mass after taking an experimental antacid.

Sherilyn Fenn (Ep. 5.11, “Joy to the World”)
Character: the mother of a teenage girl suffering from both pregnancy and terminal cancer.

Judy Greer (Ep. 5.18, “Here Kitty”)
Character: a woman convinced that she’s going to die because a cat with a disconcerting tendency to sleep next to people on the last night of their lives slept next to her.

Mos Def (Ep. 5.19, “Locked In”)
Character: a guy who gets into a bicycle accident and gets locked-in syndrome for this trouble, meaning that he can think and is fully aware but can’t move or tell anyone of his awareness.

Meat Loaf (Ep. 5.20, “Simple Explanation”)
Character: a terminal patient who, like his life’s not bad enough already, has to endure watching his wife start to succumb to a resperatory ailment.

Carl Reiner (Ep. 5.24, “Both Sides Now”)
Character: an elderly man who claims to have a “squawking ” problem – his term for acid reflux, apparently – but actually has pancreatic cancer.

Curtis Armstrong (Ep. 6.1, “Broken”)
Character: One of House’s fellow patients at Mayfield Psychiatric Hospital.

James Earl Jones (Ep. 6.3, “The Tyrant”)
Character: a dying African dictator who nobody wants to save because he’s pro-ethnic-cleansing. Can you blame them, though? I mean, really…

Joshua Malina (Ep. 6.9, “Wilson”)
Character: a former patient of Wilson’s who asks him for part of his liver and, after getting it, proceeds to prove himself to be as much of a user as House is.

Ethan Embry (Ep. 6.10, “The Down Low”)
Character: a drug dealer suffering from the repeated aneurysms brought on by Hughes-Stovin Syndrome.

Orlando Jones (Ep. 6.12, “Moving the Chains”)
Character: Foreman’s brother. They’re not real close.

Laura Prepon (Ep. 6.14, “Private Lives”)
Character: A workaholic blogger with a case of Whipple’s Disease. It’s a gastrointestinal disorder. Any more detail would just freak us both out.

Sarah Wayne Callies (Ep. 6.18, “Open and Shut”)
Character: a woman whose open marriage makes it decidedly difficult to determine her ailment.

Jennifer Grey (Ep. 7.5, “Unplanned Parenthood”)
Character: a woman who gives birth to a baby with breathing problems, only to find out that she has melanoma and has passed it on to her child.

Amy Irving (Ep. 7.3, “Unwritten”)
Character: the author of a popular series of children’s books who has a seizure in the middle of trying to commit suicide.

Jack Coleman (Ep. 7.6, “Office Politics”)
Character: a senator’s campaign manager who has kidney failure. Oh, also, he probably had sex with the senator.

Matthew Lillard (Ep. 7.9, “Larger Than Life”)
Character: a musician who learns that parents aren’t fucking around when they tell you that chicken pox can be a major hassle when contracted by adults.

Donal Logue (Ep. 7.20, “Changes”)
Character: a lottery winner whose paralysis and cancer may or may not be the result of his new millionaire lifestyle.

David Costabile (Ep. 7.20, “Changes”)
Character: the lottery winner’s shady cousin.

Michael Pare (Ep. 8.1, “Twenty Vicodin”)
Character: The warden of the prison House gets thrown in after driving his car into Cuddy’s house.

Wentworth Miller (Ep. 8.3, “Charity Case”)
Character: a philanthropist who, in the midst of his own medical issues, offers to donate a kidney to a patient.

Michael Nouri (Ep. 8.4, “Risky Business”)
Character: a businessman whose constant trips to China may be the cause of his medical woes.

Billy Connolly (Ep. 8.14, “Love is Blind”)
Character: the man who would be House’s next stepfather. (In other words, the guy’s sleeping with House’s mom.)

Peter Weller (Ep. 8.20, “Post Mortem”)
Character: another physician at the hospital, one who looks suspiciously like the man who directed this episode.

James LeGros (Ep. 8.22, “Everybody Dies”)
Character: a drug addict who causes House to reflect on his life.

Chi McBride (Season 1)
Character: a billionaire pharmaceutical company owner who donates US$100 million to the hospital in return for becoming chairman of the board. He doesn’t like House. At all. Which is why he leaves quickly.

Sela Ward (Seasons 1 & 2)
Character: House’s ex-girlfriend, who turns up because she wants him to treat her husband, who’s suffering from acute intermittent porphyria. House thinks he’s going to get back together with his ex. He’s wrong.

Charles S. Dutton (Seasons 2 & 3)
Character: Foreman’s rather religious father.

R. Lee Ermey (Seasons 2 & 5)
Character: House’s father. Except it later turns out that he wasn’t actually House’s father after all. But that doesn’t stop him from grieving when he dies.

Diane Baker ( Seasons 2, 5 & 8 )
Character: House’s mother. Things get weird when she finds someone new in the wake of her husband’s death.

David Morse (Season 3)
Character: a clinic patient of House’s who gets pissed off at the way House treats him, and because he’s a detective, he proceeds to make House’s life a living hell for several episodes.

Leighton Meester (Season 3)
Character: House’s stalker. Actually, she only stalked him for two episodes, but it still technically counts.

Kadeem Hardison (Season 3)
Character: House’s attorney while he’s being taunted by David Morse’s character

Fred Durst (Season 4)
Character: the bartender who took House’s keys and forced him to ride the bus home, which subsequently wrecked and killed Amber (Anne Dudek), Wilson’s girlfriend.

Lori Petty (Season 5)
Character: a patient involved in the Huntington’s disease drug trials with Thirteen.

Andre Braugher (Season 6)
Character: House’s therapist when he’s doin’ time at the Mayfield Psychiatric Hospital. The two end up bonding somewhat after House’s release.

Cynthia Watros (Seasons 6 & 7)
Character: Wilson’s first wife. They start dating again. It doesn’t work out. Again.

Candice Bergen (Season 7)
Character: Cuddy’s mother

Paula Marshall (Season 7)
Character: Cuddy’s sister.