Maura Tierney

Maura Tierney, who dropped out of the upcoming NBC drama Parenthood to accommodate her breast cancer treatments, will return to work next month in the bicoastal play, North Atlantic, TVGuide.com has confirmed.

Maura Tierney leaves Parenthood  

Tierney will star alongside Frances McDormand and Wooster Group actors Kate Valk, Ari Fliakos, Scott Shepherd and Koosil-ja Hwang, in the production, which focuses on a peacekeeping force on an aircraft carrier in the North Atlantic during the Cold War.

The actress, 44, will make her Los Angeles debut on Feb. 10 and her New York debut on March 10.

Tierney departed Parenthood in September to focus on her breast cancer treatment and recovery, which conflicted with the show's production schedule. She was replaced by Lauren Graham.

Lauren Graham lightens up Parenthood

A rep for Tierney declined to comment on her treatment, but Parenthood executive producer Jason Katims said at the show's Television Critics Association panel Sunday that the star was "doing well."

"She's doing really good," he said. "She's in treatment, and I spoke to her a few weeks ago. And she's doing good."