This Week's TV: Which New Horror Series Will Bring The Biggest Chills?

Two new spooky TV shows premiere this week as The Tomorrow People and Once Upon a Time wrap up their seasons. Plus, zombie drama In the Flesh returns and a powerful Arrow character is back in Starling City. See all the details below!

Top image from In the Flesh. Season Two hits BBC America on Saturday.

Tonight

Adventure Time (6 PM, Cartoon Network)

Finn is not happy with his replacement arm, so he builds a tower into space to retrieve his old one.

Star-Crossed (8 PM, The CW)

Whom do you turn to when you're an alien teenager and you come across a terrorist plot? Another teenager, of course:

After Roman (Matt Lanter) and Drake (Greg Finley) discover the Trags are building a bomb known as a Suvec, they realize they need help and turn to an unexpected source - Grayson (Grey Damon). Emery (Aimee Teegarden) enlists Sophia (Brina Palencia) and Lukas (Titus Makin Jr.) to help them smuggle the Suvek out of the sector, which ultimately puts all of them in danger. Meanwhile, Teri (Chelsea Gilligan) continues her mission.

The Tomorrow People (9 PM, The CW)

Meanwhile, another set of teenagers is dealing with the possible extermination of humanity:

Russell (Aaron Yoo) realizes his alliance with The Founder (guest star Simon Merrells) was a mistake, and tries to make up for his decision by saving Cara (Peyton List) from an Ultra ambush. Stephen (Robbie Amell) understands that he must be the one to stop The Machine and the extermination of humanity, but he fears he may be too late. Russell offers up a plan to help Stephen, but he is going to need everyone's help, including John (Luke Mitchell) and Astrid (Madeleine Mantock), if they are going to have any chance to survive. Meanwhile, Jedikiah (Mark Pellegrino) offers John an interesting opportunity that could have them working together again.

Warehouse 13 (9 PM, Syfy)

When Pete, Myka, and Artie help Pete's ex-girlfriend track down an artifact, it sucks them all into a telenovela.

Metal Hurlant Chronicles (10 PM, Syfy)

In "Loyal Khondor" (based on a comic by Alejandro Jodorowsky, Pascal Alixe, and Dan Brown), a loyal warrior seeks a magical elixir to cure his princess of the dreaded "cold disease." In "Second Son" (based on a comic by Brian Robertson & Fred Beltran), two brothers fight for control of a kingdom with unique values about life and death.

Tuesday

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

More fallout from the Winter Soldier reveal in the penultimate episode of the season:

In the last episode before the epic season finale, Ward's betrayal and HYDRA's shocking secrets are revealed as Coulson's team goes undercover on a mission that leaves no one unscathed.

The Originals (8 PM, The CW)

The New Orleans supernatural species war threatens to destroy the city's vampires:

Klaus (Joseph Morgan) and Elijah (Daniel Gillies) enact a plan to collect the sacred stones needed by Genevieve (guest star Elyse Levesque) in order to forever change the fates of Hayley (Phoebe Tonkin) and the werewolf community. Realizing that Klaus' plan will lead to the extermination of all French Quarter vampires, Marcel (Charles Michael Davis) rallies an army determined to take down the Mikaelsons and regain control of the city. Davina (Danielle Campbell) warns Josh (guest star Steven Krueger) to leave town as she is forced to make a fateful decision that will turn the tide of war. Meanwhile, Francesca (guest star Peta Sargent) threatens Cami (Leah Pipes), who attempts to decipher a code that results in a surprising revelation among the city's factions.

From Dusk Till Dawn (9 PM, El Rey)

That Fuller family vacation just gets worse and worse:

As Santanico tries to turn Richie to her cause, Freddie confronts Carlos about his destiny and the temple's mysterious past. Seth, the Fullers, and Sex Machine battle their way deeper into the temple, where they meet an unexpected ally.

Jim Henson's Creature Shop Challenge (9 PM, Syfy)

Farscape's puppet Rygel serves as inspiration for the latest challenge: to create an alien who will serve as part of an intergalactic press conference. But appearances can be deceiving.

Supernatural (9 PM, The CW)

What does Abaddon have to hold over Crowley's head?

Castiel (Misha Collins) captures one of Metatron's angels (guest star Gordon Woolvet) and asks Sam (Jared Padalecki) and Dean (Jensen Ackles) for help with the interrogation. Dean eagerly accepts, which doesn't go unnoticed by Sam. Meanwhile, Abaddon (guest star Alaina Huffman) demands Crowley (Mark Sheppard) help her kill Sam (Jared Padalecki) and Dean (Jensen Ackles). When he refuses, she reveals her shocking bargaining chip. Also, Castiel (Misha Collins) sets a meeting with Gadreel (guest star Tahmoh Penikett).

Wednesday

Arrow (8 PM, The CW)

John Barrowman is back! What happens now that Thea knows Malcolm is her biological father?

Oliver (Stephen Amell) rallies his team as Slade's (Manu Bennett) soldiers attack the city. Felicity (Emily Bett Rickards) gets a call from S.T.A.R. Labs with game-changing news and Thea (Willa Holland) comes face-to-face with her father - Malcolm Merlyn (guest star John Barrowman).

Revolution (8 PM, NBC)

Truman (Steven Culp), empowered with new authority from the President, launches a mustard gas attack designed to kill Miles (Billy Burke) and Monroe (David Lyons). To Rachel's (Elizabeth Mitchell) disappointment, Miles agrees to join Monroe in a ruthless plot to beat the Patriots at their own game. As Neville (Giancarlo Esposito) faces his own challenge from the Patriots, Aaron (Zak Orth) grows increasingly alarmed by the power of the nanotech.

The 100 (9 PM, The CW)

Figures that teens stuck on Earth will eventually find the good drugs. Too bad they're doing them by accident:

Clarke (Eliza Taylor) and Bellamy (Bob Morley) go on a mission to find supplies for approaching winter. Some of the 100 accidentally eat nuts with powerfully hallucinogenic properties and lose their grasp on reality. Meanwhile, Octavia (Marie Avgeropoulos) seizes the opportunity to help a friend escape, and a terrifying event brings Clarke and Bellamy closer. On the Ark, Commander Shumway (guest star Terry Chen "House of Cards") secretly assigns one of the 100 to kill one of his own, and the treacherous actions of Diane Sydney (Kate Vernon ("Battlestar Galactica") are revealed.

Thursday

The Vampire Diaries (8 PM, The CW)

Will Bonnie have to make a major sacrifice to save the Other Side?

When Stefan (Paul Wesley) and Elena (Nina Dobrev) escape from Markos' (guest star Raffi Barsoumian) control, only to find themselves stranded in a remote location, Stefan gets philosophical with Elena about her relationship with Damon (Ian Somerhalder). After their attempt to protect the dopplegangers goes badly, Liv (guest star Penelope Mitchell) and Luke (guest star Chris Brochu) come up with a dangerous new strategy. Damon recruits Matt (Zach Roerig) and Jeremy (Steven R. McQueen) to help him set a trap for Markos, who turns out to have a devastating surprise of his own. Bonnie (Kat Graham) finally admits to Caroline (Candice Accola) that she's been keeping the truth about the Other Side from everyone. Finally, while Bonnie searches desperately for a way to stop Markos, Caroline is witness to an unthinkable act of violence by one of the Travelers.

Friday

Grimm (9 PM, NBC)

It seems that Trubel is attracting trouble. Surprise!

Nick (David Giuntoli) and Hank (Russell Hornsby) are called to investigate a double homicide, and quickly learn the victims were from a special section of the Verrat tasked with finding rare objects pertaining to the Wesen world. Trubel (guest star Jacqueline Toboni) gets involved with a mysterious father-and-son tandem that crossed the country in a desperate attempt to deliver invaluable cargo to "the Portland Grimm." Meanwhile, Captain Renard (Sasha Roiz) begins to grow suspicious of Adalind's (Claire Coffee) recent behavior and quietly decides to put extra eyes on her.

Continuum (10 PM, Syfy)

Kiera and Carlos have to stop a chemical weapon attack, and Kiera may have found her killer.

Saturday

Da Vinci's Demons (9 PM, Starz)

While Leonardo and Riario face death, Zoroaster and Nico plot their escape. Lorenzo continues waiting for an audience with the King of Naples. Bayezid arrives in Rome seeking diplomacy.

Orphan Black (9 PM, BBC America)

Will Sarah learn the details of Project Leda and the truth about Mrs. S? More importantly, what is happening to [Redacted] at the Prolethian compound?

Sarah comes home to look for answers. With Cosima's help, she digs into the origins of the clone experiment. The hunt takes her right into the belly of the beast, but getting out again could cost her more than she knows.

In the Flesh (10 PM, BBC America)

The British post-zombie outbreak drama returns! How will it break our hearts this year?

Partially Deceased Sufferer (PDS), Kieren Walker, is now in the seemingly PDS-friendly world of Roarton.

Keeping his head down, working soul destroying shifts in the Legion pub and squirreling money into his 'escape fund', Kieren only has one problem – himself. Still wrestling with 'what' he is, Kieren desperately wants to leave Roarton and start a new life.

But as tensions re-ignite, that dream may be further away than he thinks. When Victus MP Maxine Martin enters Roarton, Kieren senses that danger is approaching.

And with Victus whipping up hatred and the Undead Liberation Army retaliating violently, things will go from bad to worse.

But a little light has returned to Kieren's life when his BDFF (best dead friend forever), Amy Dyer, makes her return to Roarton.

His delight however, is cut short by Amy's opinionated beau, ULA member Simon.

Sunday

Once Upon a Time (8 PM, ABC)

The two-hour season finale sees the outcome of the battle between the Evil Queen and the Wicked Witch. Where will the second hour, titled "There's No Place Like Home," ultimately land us?

Cosmos (9 PM, Fox)

The Ship of Imagination heads back in time to witness the genius of the "Electric Boy."

Travel to 19th century England and meet Michael Faraday, a child of poverty who grew up to invent the motor and the generator. His ideas about electricity and discovery of magnetic fields changed the world and paved the way for future scientists to make giant strides in the world of high technology and instantaneous communication.

Game of Thrones (9 PM, HBO)

I'm sure the Tyrion-Tywin showdown will involve a heart-to-heart followed by a warm hug. And no one will ever die again. And everyone will live happily ever after.

Stannis (Stephen Dillane) and Davos (Liam Cunningham) set sail with a new strategy. Dany meets with supplicants. Tyrion (Peter Dinklage) faces down his father in the throne room.

Rosemary's Baby (9 PM, NBC)

Zoe Saldana takes on the first night of horror in the season premiere of the latest film-to-TV series:

"Rosemary's Baby" centers on a young married couple who move into a Paris apartment that has a haunted past. After getting pregnant, the wife becomes increasingly suspicious that both her husband and their neighbors will have ulterior motives when her child is born.

Penny Dreadful (10 PM, Showtime)

The second horror premiere of the night is Penny Dreadful, the much-teased Victorian literary mashup. Can't wait for the premiere? You can watch it online or read our spoiler-free review.

In PENNY DREADFUL, some of literature's most famously terrifying characters - including Dr. Frankenstein, Dorian Gray and iconic figures from the novel Dracula, all brilliantly reimagined in a whole new light - have become embroiled in Victorian London. The series stars Josh Hartnett (Black Hawk Down), Timothy Dalton (The Living Daylights, License to Kill) and Eva Green (Casino Royale). Reeve Carney (Spider-Man: Turn Off the Dark), Rory Kinnear (Skyfall), Billie Piper (Doctor Who, Secret Diary of a Call Girl), Harry Treadaway (The Lone Ranger) and Danny Sapani (The Bill) also star.

Salem (10 PM, WGN)

Poor Mercy. Will she finally get some relief, or will Mary find something worse to do to her thrall?

An old nemesis of Alden's arrives in Salem with secrets that could destroy him; Mary loses her grip on Mercy.

Robot Chicken (11:30 PM, Adult Swim)

Gerry gets infected in World War Z; Benjamin Franklin's latest invention is revealed; Hannah from "Girls" has a new boyfriend; and the prequel to "The Parent Trap" is revealed.