"All your lives are about to change," promises Rip Hunter in the latest teaser for The CW's upcoming superhero epic, "DC's Legends of Tomorrow."

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Scheduled for a Thursday, January 21 premiere, "Legends of Tomorrow" stars Caity Lotz as White Canary, Brandon Routh as the Atom, Wentworth Miller as Leonard Snart/Captain Cold, Dominic Purcell as Mick Rory/Heat Wave, Victor Garber as Professor Martin Stein (one-half of Firestorm), Franz Drameh as Jefferson "Jax" Jackson (the other half of Firestorm), Ciara Renee as Hawkgirl and Arthur Darvill as time-traveler Rip Hunter. Stephen Amell and Grant Gustin will appear as Arrow and The Flash.