A teen magazine. A political investigation. A secret message. Shocking revelations lead to major questions for Sean, Tully and Kate.

An engineering catastrophe on Snowpiercer forces Layton to make a difficult choice, one that might cost him everything.

Mr. Wilford arrives and threatens Snowpiercer, so Melanie makes a move that can’t be undone.

An exchange is made between the two trains, but a far greater revelation might be just over the horizon.

Melanie embarks on her most dangerous mission yet, while Layton reckons with his personal choices.

Layton and Miss Audrey make a risky play for Big Alice, but Wilford has his own plans.

While Kovacs tracks down a man who sent Bancroft a death threat, Lt. Ortega bends the rules to keep tabs on his whereabouts.

Kovacs recruits an unlikely partner to watch his back during a banquet at the Bancroft home, where Ortega oversees the night’s grisly entertainment.

Tortured by his captor, Kovacs taps into his Envoy training to survive. Ortega springs a surprise on her family for Día de los Muertos.

MacLaren is on his own as he fights to unravel the mystery of his team’s sudden disappearance.

After some of the Legends are captured and thrown into a Russian gulag during the height of the Cold War of 1986, Snart leads the team in an elaborate escape…

Kiera resurfaces after the mayor is killed in a brazen assassination. She reunites with Carlos to solve the murder and also tries to reconnect with Alec, who has changed since…

A deadly new criminal, Tobias Church, threatens Star City, which forces Oliver to consider forming a new team of superheroes to help him do battle. In flashbacks, Oliver faces off…

Gus’ nightmares start to feel like reality when he and Shawn work to solve an unlikely case for the SBPD.

Gus’ nightmares start to feel like reality when he and Shawn work to solve an unlikely case for the SBPD.

Jack and Mary manage to escape Michael’s clutches and end up finding an ally in “apocalyptic world” Bobby Singer. Meanwhile, Sam, Dean and Castiel continue to search for a way…