This Week's TV: The Walking Dead is back! And an Arrow family reunion!S

The Walking Dead returns after December's brutal fall finale. What's ahead for our survivors? Plus, the Person of Interest team is back together for a dangerous heist. Meanwhile, Alex Kingston's Dinah Lance returns to Arrow and Stan Lee pops up on Agents of S.H.I.E.L.D. And check out clips from this week's Almost Human, Helix, and more!

Tonight

Almost Human (8 PM, Fox)

Almost Human is back after a couple of weeks off, and the reward for our patience is a look at one of those "crazy" DRN models.

There are consequences and casualties when Danica (guest star Gina Carano), an advanced DRN that operates more like a soldier than a cop, is rebuilt and on a rampage. With few clues about her mission, location and innocent lives being lost, Kennex (Karl Urban) and Dorian (Michael Ealy) look to Nigel (guest star John Larroquette), a genius roboticist and DRN creator, in attempt to track her down in the all-new "Unbound" episode.

Bitten (8 PM, Syfy)

What's scarier than your usual run-of-the-mill werewolves? Elena and Clay discover that someone is turning psychopaths into werewolves, just for an added bit of terrible, murderous fun.

Beauty and the Beast (9 PM, The CW)

Elisabeth Rohm (of Angel and Law & Order fame) is back in TV law enforcement, and she may have some clues to Beauty and the Beast's overarching mystery:

Cat (Kristin Kreuk) and Vincent (Jay Ryan) must work together to save J.T. (Austin Basis) when he gets kidnapped, while Tori (guest star Amber Skye Noyes) attempts to intervene, with fatal consequences. Meanwhile, a stranger (guest star Tom Everett Scott) from FBI Agent Dana Landon's (guest star Elisabeth Rohm) past is rescued along with J.T., and might have some insight about Vincent's beastly past.

Being Human (9 PM, Syfy)

Is there a werewolf baby on the horizon? This week's episode is titled "Panic Womb," and Nora and Josh get a glimpse of their possible future. Meanwhile, Sally enlists an old friend to solve a mystery.

Archer (10 PM, FX)

Archer has to stage an intervention for Pam, but the endeavor is derailed by an unwanted guest.

Lost Girl (10 PM, Syfy)

In "Turn to Stone," Bo deals with a deadly enemy and a confession from Kenzi—which will trigger the greater change in her life?

Teen Wolf (10 PM, MTV)

We round out Werewolf Monday in Beacon Hills, where the masked demons are on the prowl. But whom are they chasing?

Scott's friends pledge to protect him against an increasingly hostile enemy while Argent, Isaac and Allison search for answers through an old adversary from the Japanese Yakuza. At the same time, Stiles enlists Melissa's help in figuring out exactly what's going on with him.

Tuesday

Johnny Test (7:30 PM, Cartoon Network)

It sounds like Johnny is channeling Intelligence (or, if you prefer, A Girl and Her Fed) in "Johnny Goes Viral."

The girls insert a computer chip into Johnny's brain, and now he is directly connected to the internet at all times, giving him unlimited cool knowledge!

Marvel's Agents of S.H.I.E.L.D. (8 PM, ABC)

Stan Lee guest stars on this week's episode, in which Coulson and his crew, hot on the trail of the Clairvoyant, find themselves on board a mystery train that seems bound for death.

The Originals (8 PM, The CW)

It may not be Werewolf Monday, but Tuesday will feature at least one werewolf party:

At the re-opening of St. Anne's Church, Father Kieran (guest star Todd Stashwick) finds himself in a great deal of trouble after a run-in with a witch from his past. Marcel (Charles Michael Davis) and Rebekah (Claire Holt) grow concerned when the reemergence of someone they once knew threatens to expose secrets they've kept buried for nearly a century. Elsewhere, Sophie (Daniella Pineda) is shocked when a discovery is made at the cemetery, but she soon realizes things may not be as they seem. With the full moon looming, Hayley (Phoebe Tonkin) lets Rebekah in on her plan to throw a party for her werewolf clan, but things take a dangerous turn when uninvited guests arrive. Meanwhile, Cami (Leah Pipes) is conflicted when she makes a difficult decision involving the safety of Father Kieran, and Elijah (Daniel Gillies) finds himself facing his own dilemma when he has to choose between Hayley and his siblings. Finally, when one of his plans fails, Klaus (Joseph Morgan) takes drastic measures in the Cauldron, resulting in dangerous repercussions that affect everyone involved.

Supernatural (9 PM, The CW)

The Winchesters head to a spa, but it's hardly a relaxing experience:

Sam (Jared Padalecki) and Dean (Jensen Ackles) investigate recent murders where the victims were hundreds of pounds lighter after their deaths. Suspecting witches, the two go undercover at a fancy day spa that all of the victims had attended for weight loss. While Sam is hired as a fitness instructor, Dean takes kitchen duty. After Dean swipes some tainted food and passes out, the guys realize someone is drugging the guests and literally sucking all of the fat out of them until they die.

Person of Interest (10 PM, CBS)

Person of Interest returns! And the team is back together:

Reese rejoins Finch in New York, but when the team receives the number of a highly skilled antiquities thief, a surprising turn of events finds them planning a heist which could land them all in jail.

Also on tonight: On Syfy's Face Off (9 PM), the contestants will have to create an original rock star character "who has truly become one with an electric guitar."

Wednesday

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

There may be such a thing as loving waffles too much:

Cyborg and Beast Boy show their love of waffles by making it the only word they say, much to the annoyance of the other Titans. Maybe Brother Blood can make them stop, with the help of his new henchman, Pain Bot.

Arrow (8 PM, The CW)

Alex Kingston's Dinah Lance is back for a possible family reunion:

As Laurel (Katie Cassidy) continues to unravel, Oliver (Stephen Amell) and Lance (Paul Blackthorne) try to convince Sara (guest star Caity Lotz) to stay in Starling City and finally reunite with Laurel and Dinah (guest star Alex Kingston). However, Sara's fellow League of Assassins member, Nyssa (guest star Katrina Law, "Spartacus"), comes to bring Sara back to the fold, but when Sara refuses, Nyssa kidnaps Dinah. Realizing she's putting her family in danger by staying in town, Sara considers re-joining the league.

Dreamworks Dragons: Defenders of Berk (8 PM, Cartoon Network)

Toothless is the latest victim of a dangerous flu spreading through Berk.

Nova (9 PM, PBS)

The series takes us through the daily life and health of Roman citizens at the height of the Roman Empire.

The Tomorrow People (9 PM, The CW)

It seems everyone in Stephen's family is harboring some sort of secret, and his mother is no exception:

Stephen (Robbie Amell) is upset with Jedikiah (Mark Pellegrino) for going back on his word, leaving Stephen to face The Founder (guest star Simon Merrells, "The Wolfman"). In order to protect Astrid (Madeleine Mantock), Stephen has to make a dangerous deal to bring in a powerful break-out. John (Luke Mitchell) and Cara (Peyton List) clash, forcing Cara to issue a harsh and unexpected punishment. Meanwhile, Stephen learns a surprising secret about his mom.

Thursday

The Vampire Diaries (8 PM, The CW)

How to heal a supernatural broken heart? With a college party:

Hoping to help everyone move past recent traumatic events, Caroline (Candice Accola) convinces Elena (Nina Dobrev) and Bonnie (Kat Graham) to attend Whitmore College's "Bitter Ball" for broken-hearted students. Bonnie is intrigued with a fellow student named Liv (guest star Penelope Mitchell), who appears to be dabbling in witchcraft. Tyler (Michael Trevino) starts to worry about Matt's (Zach Roerig) relationship with Nadia (guest star Olga Fonda). After making a disturbing discovery, Stefan (Paul Wesley) has a frustrating conversation with Damon (Ian Somerhalder) and Enzo (guest star Michael Malarkey). Dr. Wes (guest star Rick Cosnett) struggles to continue his research project with help from a new benefactor named Sloan (guest star Caitlin McHugh). Still bent on revenge, Damon and Enzo resort to violence to convince Bonnie and Jeremy (Steven R. McQueen) to help them, but their plan takes an unexpected and horrifying turn.

Friday

Helix (10 PM, Syfy)

Alan and Sarah race to find a cure as Walker and Peter are trapped and nearly dying, and Balleseros encounters someone with a surprising connection to the base. Check out the first five minutes of the episode above.

Also on tonight: If you haven't seen Joe Cornish's Attack the Block yet, you can catch it at 8 PM on The CW. It's a hilarious alien invasion movie set in the British housing projects, and it's one of our favorite flicks of the past few years. Take two hours out of your week and give it a watch.

Saturday

Mythbusters (8 PM, Discovery)

This week, Mythbusters is Sithbusters, exploring (and exploding) ideas from the Star Wars movies.

Atlantis (9 PM, BBC America)

We're getting down to the last couple of episodes stateside, with Jason attempting to fulfill his dangerous task:

Jason is reminded of his promise to Circe and her grim warning should he fail to honor their pact. He has no choice but to act – he must kill the queen. Infiltrating the palace will not only be mortally dangerous, but also nearly impossible.

Space Dandy (11:30 PM, Adult Swim)

Dandy and Meow get stuck on a distant planet and trapped in an endless battle over wearing underwear.

Sunday

The Walking Dead (9 PM, AMC)

This episode is appropriately titled "After." When we last left our survivors, they had just lost their home and some of the key members of their family. This week, we'll finally learn what happens in the aftermath of that fatal showdown. Need a refresher on the series? AMC will be airing a massive marathon starting at 1 PM on Saturday.