This Week's TV: 6 Season Finales. Plus Neil Gaiman writes Doctor Who!

This week's television includes a half dozen finales — including a Community finale that revisits the Darkest Timeline. Can Neil Gaiman make the Cybermen awesome again? Plus Person of Interest reveals the truth about the Machine, and Tricia Helfer plays a mother who has psychic powers! Clips and details below.

Top image: Doctor Who

Today:

Adventure Time (7:30 PM, Cartoon Network):

Yay, this show is back! And here's a clip. What can you expect from "James Baxter the Horse"? Among other things, "Finn and Jake meet a horse with the power to make sad people happy." And that's followed by an all-new Regular Show.

Defiance (9 PM, Syfy):

Are you still feeling the zany "Wild West" vibe of this series? Here's what's up this week. "Kenya (Mia Kirshner), who is abducted in the alien badlands when she sets out to amend the corrupt affairs of Tirra, a troubled NeedWant employee. Meanwhile, Rafe tries to determine who gave his dead son the golden device that may have led to the boy’s death."

Warehouse 13 (10 PM, Syfy):

This is the episode where Artie really deals with the fallout of the terrible events of last year's episodes — and it's got one or two moments that pack a real emotional punch, particularly one scene between Artie and Claudia. Meanwhile, Pete and Myka are on an "artifact of the week" case, in which regrets from the past also wind up being an important factor.

Revolution (10 PM, NBC):

This could be really fun — generally, every time Giancarlo Esposito and Billy Burke have shared screen time, it's been among this show's best moments. And now they're teaming up! Fingers crossed:

MILES REMAINS WARY AS NEVILLE CLAIMS TO BE ON HIS SIDE AND THE GANG MAKES A DARING RESCUE, WHILE RACHEL AND AARON FACE THE MILITIA - Miles (Billy Burke) and Tom Neville (Giancarlo Esposito) find themselves fighting for the same cause but Miles still doesn't trust him. And Charlie (Tracy Spiridakos), Jason (JD Pardo) and Nora (Daniella Alonso) attempt to pull off a daring river rescue of Dr. Stephen Camp (Timothy Busfield) to keep deadly anthrax out of the hands of Monroe (David Lyons). Meanwhile Rachel (Elizabeth Mitchell) and Aaron (Zak Orth) are captured and threatened by Militia forces.

Also on TV tonight: At 10 PM, there's a new Castleon ABC.


Tuesday:

Teen Titans Go! (7:30 PM, Cartoon Network):

Check out two clips from this week's episode, in which the gang clones themselves to get out of doing chores, and Robin poses as Speedy to sabotage his date with Starfire. Wolfman and Perez are probably watching this show through their fingers. This show is preceded by a brand new Johnny Test, which includes a jetpack chase, and followed by a new Looney Tunes.

Grimm (10 PM, NBC):

Yay, we're getting an episode all about the Nick-Juliette relationship!

A NEW CASE MAY THREATEN NICK AND JULIETTE'S PROGRESS IN GETTING BACK TO HOW THINGS USED TO BE - NORA ZEHETNER ("HEROES") GUEST STARS — Nick (David Giuntoli) discovers a muse-like Wesen (guest star Nora Zehetner, "Heroes") with the ability to influence those she gets close to - some with positive results, others with terrifying ones. Nick must find a way to get close without losing himself in the process. Juliette (Bitsie Tulloch) arranges a dinner date with Nick in the hopes of clearing the air, but their plans go awry as the case intensifies. Meanwhile, Rosalee (Bree Turner) takes her first visit to Aunt Marie's trailer.


Wednesday:

Arrow (8 PM, The CW):

When we were at Wondercon, the cast and crew of Arrow kept saying episode 22 would feel epic enough to be the season finale, but it's actually just the penultimate episode. Now, at last, we'll find out what they were on about:

CAN OLIVER OUTWIT OR OUTFIGHT THE DARK ARCHER TO SAVE THE CITY? — With the Undertaking days away, Malcolm (guest star John Barrowman) dons his black hood to conclude business with seismologist Dr. Brion Markov (guest star Eric Floyd) and his team. Oliver (Stephen Amell) and Moira (Susanna Thompson) entertain a number of surprise – and mostly unwelcome – visitors. Hooded confrontations at home and the Meryln Global Group reveal dark secrets. Meanwhile, Roy (guest star Colton Haynes) and Thea (Willa Holland) are still looking out for a hero. Laurel (Katie Cassidy) makes a decision after Tommy’s (Colin Donnell) revelation. In a flashback to the island, Oliver, Slade (guest star Manu Bennett) and Shado (guest star Celina Jade) struggle to prevent Fyers (guest star Sebastian Dunn) from shooting a Ferris Air jet out of the sky.

Mythbusters Deadliest Catch Crabtastic Special (8 PM, Discovery):

No, this isn't about STDs and the many myths that you might want to bust about them. Rather, it's a crossover between Mythbusters and Deadliest Catch, in which our heroes try to catch crabs. Waitaminute. Actually, here's the scoop: "Deadliest Catch captains Johnathan and Junior join the MythBusters to test if a crab pot will drag you overboard to the bottom of the sea if your foot is caught in a coil, if it's better to work a 30-hr grind with no sleep, and if crab pots truly are indestructible." This is followed by a new Big Brain Theory.

Supernatural (9 PM, The CW):

In "Clip Show," apparently we're going to see a bunch of fake clips from past episodes, as this show takes a leaf out of Community's book. That actually sounds fun...

FAMILIAR FACES RETURN AS THE THIRD TRIAL NEARS — Sam (Jared Padalecki) and Dean (Jensen Ackles) reunite with Castiel (Misha Collins). Digging through the Men of Letters’ files, they stumble upon an undiscovered film which could be the key to the third trial. Metatron (guest star Curtis Armstrong) enlists Cass to mull over problems at home. Meanwhile, Crowley (guest star Mark Sheppard) digs into Sam and Dean's past.

Watch What Happens: Live (11 PM, Bravo)

Featuring Zachary Quinto and Alyson Hannigan, which has to be some kind of nerd critical mass right there.

Also on TV tonight: There's more Nature on PBS at 8 PM, about the private life of deer, followed by more Nova, about "Venom: Nature's Killer," at 9 PM. Syfy has more Deep South Paranormal at 10 PM, plus USA has a new Psych.


Thursday:

Community (8 PM, NBC):

It's the season finale — and, let's be real here, probably the series finale this time. And just to remind you of why you'll really, really miss this show, they're revisiting one of your all-time favorite episodes, the "Chaos Theory" one. Here's the scoop:

JEFF CONTEMPLATES GRADUATION FROM GREENDALE - THE STUDY GROUP GRAPPLES WITH THE RETURN OF THE DARK TIMELINE - Jeff (Joel McHale) achieves enough credits to graduate and contemplates graduation - and beyond. Meanwhile, the study group revisits the "darkest timeline" (from last season's "Remedial Chaos Theory").

The Vampire Diaries (8 PM, The CW):

Didn't we already have the "ghosts come back and pester everybody" episode last year, when Lexie came back and tried to do an intervention on Evil Stefan? Anyway, yay for Caroline doing more party planning!

SOMETHING WICKED — As Graduation Day approaches, Caroline (Candice Accola) tries to distract Elena (Elena Dobrev) by focusing on simple tasks like sending out announcements, but Elena won’t be swayed from her new obsession. Sheriff Forbes (Marguerite MacIntyre) calls Damon (Ian Somerhalder) and Stefan (Paul Wesley) to the hospital, where someone has been attacking patients. Still trying to force Katherine (Elena Dobrev) to help her, Bonnie (Kat Graham) refuses to give up on her plan to defeat Silas. As a violent wind storm causes a power outage in MysticFalls, ghosts suddenly appear – some with good intentions and some bent on revenge.

Beauty and the Beast (9 PM, The CW):

Check out a clip! Cat and Vincent actually try and go on a date. In public. Which is just as good an idea as it sounds. Meanwhile, Mohinder may have found a cure for Vincent's condition.

Person of Interest (9 PM, CBS):

Holy crap, cannot wait for this season finale. It's the final battle to see who gets admin access on the Machine. And we might actually get to see where the Machine lives now. All in all, it looks like it'll be a fitting end to a season that began with Root seeking the Machine and our first glimpses of Finch's early relationship with it. Guest starring basically everybody, including Elias! Here's the skinny:

"God Mode" - Reese & Finch team up with surprising allies in a race to save The Machine from Root and the mysterious international organization Decima, who have both re-emerged with dangerous agendas. As the POI team faces off against enemies old and new, the nature of Finch's relationship with former partner Nathan Ingram is revealed along with his original motivation for wanting to save The Machine's irrelevant numbers. Meanwhile, in her mission to bring Cal Beecher's murderer to justice, Detective Carter finds herself up against the criminal organization known as HR.

Also on TV tonight: On Big Bang Theory, the gang plays Dungeons and Dragons. Wait, didn't another sitcom that's airing tonight already do the D&D episode? Plus there's a new Elementary on CBS at 10 PM. At midnight, there's another new Your Pretty Face is Going to Hell on Adult Swim.


Friday:

Nikita (8 PM, The CW):

Maybe time to give this show another look? Nikita is getting married, but the spy game won't let her go that easily. Does she have all the time in the world?

AT LAST…? — Before becoming engaged, Nikita (Maggie Q) said, “There’s always gonna be another mission.” Now, after barely surviving harrowing recent events, Michael (Shane West) questions his fiancée’s commitment to a life beyond Division’s web of deceit, double-crosses and murder – and he’s not the only one with doubts. Still, the remaining threat of Amanda (Melinda Clarke) looms large over the team, particularly since she’s now allied herself with mysterious new partners that furnish her with a terrifying new weapon. Meanwhile, Alex (Lyndsy Fonseca) considers an intriguing offer from the Nobel Prize winner (guest star Raven Dauda) she’s defending.

Da Vinci's Demons (9 PM, Starz):

So now that Da Vinci is an accused sodomite, how is this going to play out? Here's our first clue: " Lorenzo demands that Piero da Vinci defend his estranged son in court; Leonardo surprises the corrupt judge during a performance for visiting royalty; the Turk visits Leonardo at his workshop."

Touch (9 PM, Fox):

The season finale — or again, let's be honest, probably the series finale. This is your last chance to see Kiefer delve into Heroes creator Tim Kring's "everything is connected" spiel.

THE COMPLETION OF THE NUMBER SEQUENCE COULD MEAN DEATH OR ENLIGHTMENENT — As Aster Corps closes in on the completion of the number sequence that could catapult them to the top of the global economy, determined executive Nicole Farington (guest star Frances Fisher) stops at nothing with her two new test subjects. Meanwhile, Martin and Trevor are on an intense mission of their own to interrogate Aster Corps heavy Tanner (guest star D.B. Sweeney) for answers. As Jake and Amelia remain at the epicenter of these critical events, it's a race against time for Martin to save them before Aster Corps changes the world forever.

Also on TV tonight: There's a new (to Americans) episode of Merlin on Syfy at 10 PM.


Saturday:

Dangerous Intuition (8 PM, Lifetime):

Ye gods, this looks amazingly demented. Watch a 30-second promo spot here. Tricia Helfer stars in a TV movie of the week about a working mom who's forced to share custody with her ex-husband's younger, stay-at-home wife — and then has psychic premonitions that her child is in danger. It's basically just all your anxieties about joint custody, filtered through the lens of psychic powers. Here's what Lifetime tells us:

Kate Aldrich, a successful career woman is devastated when her husband leaves her for stay at home mom, Laura, with whom she is forced to share custody of her beloved daughter, Izzy. But Kate's despair soon turns to terror as she begins to have intense visions that Izzy is in mortal danger — and becomes convinced that Laura is the threat.

Doctor Who (8 PM, BBC America):

The last time Doctor Who had an anniversary and a Cyberman story with "Silver" in the title, it was kind of a letdown. But luckily, this one is written by Neil Gaiman, whose affection for Doctor Who shines through every time he talks about the show — and we keep hearing hints that the Cybermen are actually going to be scary again! Here's the official scoop:

Hedgewick's World of Wonders was once the greatest theme park in the galaxy, but it's now the dilapidated home to a shabby showman, a chess-playing dwarf (WARWICK DAVIS, Harry Potter films) and a dysfunctional army platoon. When the Doctor (MATT SMITH), Clara (JENNA-LOUISE COLEMAN, Emmerdale, Captain America: The First Avenger), Artie and Angie arrive, the last thing they expect is the re-emergence of one of the Doctor's oldest foes. The Cybermen are back!

Orphan Black (9 PM, BBC America):

This show keeps getting more fascinating. Here's what's next:

“Parts Developed In An Unusual Manner” – With Paul missing, Sarah is forced to confront the conspiracy head on. But when Paul learns Sarah has kept essential information from him, the fragile trust between them threatens to shatter. Meanwhile, Cosima grows closer to Delphine and the dangerously fascinating Dr. Leekie.

Also on TV today: A new Teenage Mutant Ninja Turtles on Nickelodeon at 11 AM, followed by a new Monsters Vs. Aliens at 11:30. Science has a brand new Outrageous Acts of Science at 10 PM.


Sunday:

Once Upon a Time (8 PM, ABC):

Yet again, this show is revealing almost no details for the season finale, but here's a sneak peek clip.

Game of Thrones (9 PM, HBO):

This episode is called "The Bear and the Maiden Fair," and there may be cause to be concerned for the well-being of Brienne of Tarth, since the last time we heard the song of that title, bad things were in store for her. Here's what's going on this time:

Daenerys (Emilia Clarke) exchanges gifts with a slave lord outside Yunkai. As Sansa (Sophie Turner) frets about her prospects, Shae (Sibel Kekilli) chafes at Tyrion's (Peter Dinklage) new situation. Tywin counsels the king, and Melisandre reveals a secret to Gendry (Joe Dempsie). Brienne (Gwendoline Christie) faces a formidable foe in Harrenhal.

Also on TV today: Nicktoons has two new Yu-Gi-Oh! Episodes at 11 AM, followed by a new Monsuno at noon. There's a new Winx Club on Nickelodeon at 1 PM. Fox has its usual collection of animated TV shows, starting at 7:30, including a body-swapping season finale of American Dad.

Sources: Futon Critic, MSN TV, TV Guide, and various TV studio press releases.