With the new year just hours away, many fans are counting down the return of their favorite TV shows, following the holiday hiatus. The CW's The Flash and Arrow will return on Tuesday, January 19 and Wednesday, January 20 respectively, and both shows will be joined by yet another superhero series, DC's Legends of Tomorrow, debuting Thursday, January 21 at 8 PM ET. The network has released a new trailer for this highly-anticipated adventure, which gives us a new look at the unorthodox team assembled by Rip Hunter (Arthur Darvill), to save the world from a horrific threat. We also get a glimpse at the Time Masters, who Rip Hunter visits to ask permission for putting a team together.

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?

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.

Related: Jonah Hex Arrives in Legends of Tomorrow Season 1 Finale Trailer

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. Stephanie Corneliussen has also 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.

We also reported yesterday that The CW will be airing a new special entitled DC's Legends of Tomorrow: Their Time Is Now on Tuesday, January 19 at 9 PM ET, offering an in-depth look at the origin stories of the heroes and villains of the highly-anticipated new series. The special features show clips and interviews from Legends, Arrow and The Flash executive producers Greg Berlanti, Marc Guggenheim, Andrew Kreisberg, Phil Klemmer and Wendy Mericle. Their Time Is Now introduces viewers to the immortal madman Vandal Savage, the time master Rip Hunter, and the motley band of heroes and rogues he assembles to try to save the future of humanity: Hawkman, Hawkgirl, White Canary, The Atom, Firestorm, Captain Cold, and Heat Wave. Take a look at the latest trailer for DC's Legends of Tomorrow, as we get ready for its debut next month.