Claire discovers that a drone with stealth technology is being used to track the sexual, clandestine excursions of capital hill targets. The developer of the classified tracking technology was a school friend of the late Vicent Foster.

Claire's U.N. bid runs into trouble. Frank fights off mutiny with a bold address to the country.

The Russian President's state visit becomes a Cold War of wills and some punks heat things up.

Claire bypasses Russia at the U.N. Frank tries to outmaneuver a potential challenger and ends up face to face with a higher power.

Frank declares war on Congress to jump-start his jobs program. Claire spars with the Russian ambassador.

Frank and Claire travel to Moscow to negotiate the return of an imprisoned U.S. citizen. Claire takes a stand that jeopardizes their plans.

The damage is done, and the Underwoods must repair it. But deep wounds don't heal fast and sometimes not at all.

A hurricane endangers more than just the entire East Coast, and Frank must make a difficult choice.

The Jordan Valley erupts in chaos just as Frank's campaign is picking up steam. Claire gets disturbing intel and counsels him.

Frank needs to deal with Petrov one on one, while Claire tries to preserve the peacekeeping mission. Sacrifices must be made.

Things turn ugly when Frank, Jackie, and Heather square off during their first debate. Tom joins Claire on the campaign trail.

Heather Dunbar goes for the jugular, forcing Claire to confront her worst fears. The rift between Frank and Claire widens.

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