Peggy Carter barely got five minutes of interrogation with Dottie Underwood before Agent Jack Thompson sent her to Los Angeles on a case. Peggy may get another crack at Dottie, but only after she asks the Russian spy for an assist on bringing down her current foe, Whitney Frost.

This season on "Marvel's Agent Carter," Peggy (Hayley Atwell) is slowly piecing together clues that could tie movie star and scientist Whitney Frost (Wynn Everett) to a dangerous substance known only as Zero Matter.

So far, Agent Carter has found a pin in the vehicle of a Isodyne Energy employee that matches the same pin Dottie (Bridget Regan) tried to steal from a safe deposit box. The symbol on the pin was also seen at a men's club where Frost's husband Calvin Chadwick (Currie Graham) is a member.

In order to take down Ms. Frost, Peggy may need an assist from Dottie. But the SSR agent can't ignore the risk that Dottie still poses even as a potential ally.

"Dottie has no empathy, and that's incredibly dangerous, because it means she's sick," Atwell told Entertainment Weekly. "However, Peggy can't deny that she can be extremely valuable. They both know, under the surface, this is a game of psychological warfare between them."

In the next episode, Peggy goes a bit rogue to hunt down the man who tried to kill her and ends up kidnapping that man. Vernon Masters (Kurtwood Smith) also pays Agent Carter a visit.

"Marvel's Agent Carter" airs on Tuesdays at 9 p.m. on ABC.