The CW has released an official description for “Pilot, Part 1,” the December 21 first episode of DC’s Legends of Tomorrow.
You can find that below.
SERIES PREMIERE — In the year 2166, the immortal villain Vandal Savage (Casper Crump) is on the verge of his final victory – total chaos and the utter destruction of humanity. As the world crumbles, the Time Master Rip Hunter (Arthur Darvill) takes matters into his own hands; he travels 150 years into the past to assemble a carefully selected team of heroes and rogues to stop him. Hunter has chosen what seems like an ill-matched group: billionaire inventor Ray Palmer (Brandon Routh), who has created an exo-suit with the power to shrink him to miniscule size, as the Atom; Sara Lance (Caity Lotz), the White Canary, a trained assassin; Professor Martin Stein (Victor Garber) and Jefferson “Jax” Jackson (Franz Drameh), who together form the meta-human Firestorm; Leonard Snart (Wentworth Miller), known as Captain Cold, and his partner Mick Rory (Dominic Purcell), AKA Heat Wave, a pair of career criminals; and Kendra Saunders (Ciara Renée) and Carter Hall (Falk Hentschel) AKA Hawkgirl and Hawkman. Together this unlikely group will attempt to stop one of the most formidable villains of all time, while they must learn how to not only be a team, but heroes as well. Glen Winter directed the episode written by Marc Guggenheim & Phil Klemmer and Greg Berlanti & Andrew Kreisberg (#101). Original airdate 1/21/2016.
If you missed them before, you can find some preview images here: