Chuck: Season 1, Episode 3

1 - 3: Chuck Versus the Tango

Through the use of the Intersect now stored in his brain, Chuck discovers that an arms dealer known only as "La Ciudad," whose appearance is unknown, will be present at an art auction. Chuck is forced to infiltrate the party with Sarah to try and identify La Ciudad. While Casey and Sarah are preoccupied by MI6 agents, Chuck ends up dancing the tango with a seductive Latin woman, Malena (Lorena Bernal), who turns out to be La Ciudad.