Frank scrambles to keep his plan on track. Gillian is planning to sue Claire. Zoe, Janine, and Lucas investigate Rachel Posner and her relationship with Peter Russo.

In the wake of a surprising announcement, everything at the White House is shaken up. A decision must be made about whether to go to war.

As the hostage situation continues, Claire secretly negotiates with Yusuf al Ahmadi. Frank confronts Hammerschmidt.

In the midst of the Iowa caucuses, Frank and Claire must confront hard truths about each other.

Francis faces annihilation while the nation is in an uproar. Stamper must tie up loose ends. Claire feels the cost of ruthlessness.