With the holiday season now winding down, many fans are looking forward to their favorite TV shows returning from the winter hiatus. The CW's superhero lineup of Arrow and The Flash will be joined by a new DC Comics series, Legends of Tomorrow, debuting Thursday, January 21 at 8 P ET. To get fans ready for this highly-anticipated series, the network has released yet another trailer with brand new footage.

In DC's Legends of Tomorrow, when heroes alone are not enough, the world needs legends. Having seen the future, one he will desperately try to prevent from happening, time-traveling rogue Rip Hunter is tasked with assembling a disparate group of both heroes and villains to confront an unstoppable threat - one in which not only the planet is at stake, but all of time itself. Can this ragtag team defeat an immortal threat unlike anything they have ever known?

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DC's Legends of Tomorrow stars Victor Garber as Dr. Martin Stein, Brandon Routh as Atom, Arthur Darvill as Rip Hunter, Caity Lotz as White Canary, Ciara Renee as Hawkgirl, Falk Hentschel as Hawkman and Franz Drameh as Jay Jackson, with Dominic Purcell as Heat Wave and Wentworth Miller as Captain Cold. Based on the characters from DC Comics, DC's Legends of Tomorrow is from Bonanza Productions Inc. in association with Berlanti Productions and Warner Bros. Television, with executive producers Greg Berlanti, Marc Guggenheim, Andrew Kreisberg, Phil Klemmer, Chris Fedak and Sarah Schechter serve as executive producers. Glenn Winter directed the pilot episode, from a script by Greg Berlanti, Marc Guggenheim, Andrew Kreisberg.

Vandal Savage (Casper Crump), serves as the show's main villain, who fans first saw in the Arrow and The Flash crossover event that aired earlier this month on The CW. We reported in September that Stephanie Corneliussen has signed on to play the DC Comics character Valentina Vostok, a.k.a. Negative Woman, and another report from October revealed that the show is casting for Connor Hawke. In the Arrow comic books, Connor Hawke is Oliver Queen's son, although that aspect of the comics will be discarded for the TV version.

Arrow characters Oliver Queen (Stephen Amell) and Black Canary (Katie Cassidy) will be putting in appearances on DC's Legends of Tomorrow. We also know that current Arrow villain Damien Darhk will be crossing over to both The Flash and DC's Legends of Tomorrow, but we'll have to wait and see exactly when these crossovers may happen. The CW kicks off a new night of action and adventure with the highly-anticipated series premiere of DC's Legends of Tomorrow on January 21 at 8:00 PM ET/PT, followed by the return of the critically-acclaimed post-apocalyptic drama The 100 (9:00-10:00pm ET/PT).