The CW's latest superhero series DC's Legends of Tomorrow has passed the halfway point of its first season, which continues with the new episode Night of the Hawk, airing Thursday, March 10 at 8 PM ET. Much like Arrow and The Flash, the show features numerous nods to DC heroes and villains, but Television Promos has debuted a new clip from tomorrow night's episode, which teases a nod to the network's first DC series, Smallville. The clip reveals that the show's main villain, Vandal Savage (Casper Crump), has surfaced in the 1950s, where he has assumed the identity of Dr. Curtis Knox.

In the 2007 Smallville episode entitled Cure, Dean Cain (Lois & Clark: The New Adventures of Superman) played Curtis Knox, a villainous, immortal doctor who was originally supposed to be Vandal Savage in the episode, working under an alias. However, the character was deemed to be off limits by the studio, so they changed his name to Curtis Knox. This DC's Legends of Tomorrow episode seems to pay homage to this Smallville episode, with Vandal Savage working at a psychiatric hospital under the name Curtis Knox.

This episode centers on the team tracking Savage to a small town in Oregon during the 1950s. Upon arrival, they discover there have been a recent string of murders and they suspect Savage is involved. Professor Stein and Sara go undercover at a psychiatric hospital, where Savage is working as a doctor, to find out his plan. While there, Sara meets a nurse named Lindsay (guest star Ali Liebert) and sparks fly. This clip shows how Sara saved Lindsay from being harassed by a doctor, and when Lindsay takes Sara on a tour of the hospital, we see a photo of Vandal Savage as Dr. Curtis Knox.

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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.

DC's Legends of Tomorrow is coming off their big Arrow crossover episode, where it was revealed that Connor Hawke is actually the son of David Ramsey's Diggle. It isn't known how this revelation will play into future episodes of DC's Legends of Tomorrow, since the show frequently bounces back and forth through time, but we'll keep you posted with more updates. Until then, take a look at this new clip, before tuning in to tomorrow's new episode of DC's Legends of Tomorrow.