Word is that this week's Walking Dead season finale will be full of tears, so be sure to stock up on tissues. Meanwhile, Community awards a college degree to a dog, Finch's plan unfolds on Person of Interest, Captain Cold and Heat Wave are back on The Flash, and on Arrow, the Suicide Squad gets a new mission.

Top image: Crop of promo poster for this week's iZombie. Check out the whole thing at ComicBook.com.

Tonight

Scorpion (9 PM, CBS)

The team tries to rescue a group of hikers, but they're in need of rescue themselves when their helicopter crashes, igniting a wildfire.

The Returned (10 PM, A&E)

Jack and Claire want to move so Camille doesn't have to hide, but Camille pretends to be a cousin so she can get out of the house. Lena discovers a mysterious scar on her back, and Victor has a run-in with a nosy neighbor.

Tuesday

Community (Streaming, Yahoo!)

"Everyone fights back after City College runs a commercial accusing Greendale of awarding a degree to a dog." Now that's no way to talk about Leonard.

Powers (Streaming, PlayStation Network)

Walker and Pilgrim continue to try to manage the city's Powers in "Paint it Black."

The Flash (8 PM, The CW)

Captain Cold and Heat Wave are back, and this time Snart's sister Lisa is tagging along.

Face Off (9 PM, Syfy)

This week, children describe their imaginary friends and the contestants have to bring them to life.

iZombie (9 PM, The CW)

After consuming the brain of a murdered artist, Liv finds herself consumed with passion — and she's inspired to seduce Major.

Agents of SHIELD (9 PM, ABC)

After last week's revelation, the team must decide what to do with one of their own.

Forever (10 PM, ABC)

When the owner of a treasure hunting company turns up murdered, Henry and Jo must hunt down a ship's gold — and it turns out it's the ship where Henry first died. Of course it is.

Person of Interest (10 PM, CBS)

While Finch tries to set his plan into motion, Reese must protect a bounty hunter whose life is in danger but who won't stop pursuing her target.

Wednesday

Arrow (8 PM, The CW)

Diggle and Lyla are getting married, but they'll have to hold off on that honeymoon. Deadshot tells them that the Suicide Squad has a new mission: to rescue United States Senator Joseph Cray from a hostage situation.

Supernatural (9 PM, The CW)

It's supernatural seppuku when Dean and Sam investigate a string of suicides by long and painful self-disembowelment. Apparently, the victims were all members of the same Catholic church, and they had all recently given confession.

CSI: Cyber (10 PM, CBS)

Apparently, arsonists have gone hi-tech, using less traceable (but less viscerally satisfying) methods to start their fires.

Thursday

Cartoons (5 PM, Cartoon Network)

On Steven Universe (5 PM), Cool Kids help Steven put some fun back in his life. On Uncle Grandpa (5:30 PM), Andrew WK helps Pizza Steve and Mr. Gus throw a party while Uncle Grandpa is in the shower. (It gets out of hand.) Why have the Titans gotten so goofy on Teen Titans Go! (6 PM)? Pizza. On Regular Show (7:30 PM), the Park Guys want to keep the park open for business.

Archer (10 PM, FX)

Archer and the gang prepare for their most fantastic voyage ever.

Dig (10 PM, USA)

Peter's (Jason Isaacs) obsession with the murder of Emma Wilson's leads him to uncover an ancient code as the race to discover the final missing stone intensifies. Elsewhere, Debbie (Lauren Ambrose) faces the consequences for her attempt to free Josh (Zen McGrath) and Avram's (Guy Selnik) journey continues to Croatia as a deadly assassin tracks his every move.

Vikings (10 PM, History)

Preparations for the Paris raid pick up pace, and Rollo ponders the Seer's prophecy about his destiny.

Friday

Grimm (8 PM, NBC)

It's never a good thing when your love triangle ends with Nick and Hank getting called in, but them's the breaks in supernatural Portland.

12 Monkeys (9 PM, Syfy)

Cole travels to Tokyo in 1987, where startling truths about all the events thus far come to light.

Helix (10 PM, Syfy)

Plan B: The island becomes the target of a chemical attack as Julia and Sarah prepare Amy for her bizarre surgery.

Saturday

The Good Witch (8 PM, Hallmark)

Abigail causes controversy in Middleton; Cassie's magic can't keep her away from Abigail's scheming when the truth becomes too hard to hide.

Sunday

Once Upon a Time (8 PM, ABC)

Next week, Emma will learn a truth that could destroy her relationship with her family.

The Last Man on Earth (9 PM, Fox)

Next week's episode is titled "She Drives Me Crazy," which is, let's face it, a major theme of the show.

The Walking Dead (9 PM, AMC)

Here's the description for the season finale: "Daryl experiences trouble on a run while Rick and his group continue to feel like outsiders in Alexandria, where trouble is creeping into the gates." Norman Reedus promises that viewers will be in tears, and Michael Cudlitz told Yahoo! News that the finale will "piss you off."