Tension rises between Francis and Raymond Tusk as the situation with China deteriorates. A battle in the Senate pits Francis against the Republicans.

A terror scare at the Capitol traps Francis with a resentful Donald Blythe. Claire gives a live interview that rocks the media.

Francis back-channels with a Chinese billionaire. Lucas uses extreme measures to expose the Vice President. A shadowy figure joins Team Underwood.

Amidst an energy crisis, Francis and Tusk end their shaky alliance. Lucas must make a difficult choice. Stamper grows closer to Rachel.

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

Frank asks Will to help deal with extremists threatening to murder hostages. Hammerschmidt digs deeper into the allegations against Frank.

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

The Underwoods and their team angle to undermine the revived committee investigating Frank. Hammerschmidt's investigation heats up.

As the team tries to control fallout from damaging testimony and leaks, everyone is under suspicion and tensions flare between Frank and Claire.

Frank attempts to stop Cathy from testifying. With Hammerschmidt sniffing out the truth, the Underwoods throw someone close to them under the bus.

As the first woman president, Claire faces increased scrutiny and threats. Sibling power couple Annette and Bill Shepherd attempt to influence policy.

Claire clashes with the Shepherds and Mark Usher, who pressure her to sign the Future Act. Doug makes an unexpected move.

The Shepherds push Claire on a Supreme Court nomination. Doug works to find a new path for himself. Claire consults with Jane on Syria.

As a crisis mounts in Syria, Russian President Viktor Petrov wants to make a deal with Claire. Questions arise about Tom Yates's whereabouts.

Claire allows her enemies to think she's incapacitated as they plot to remove her from office. Doug's investigation leads him to uncover a secret.

Claire makes staff changes. The Shepherds try to recruit Doug to their side. With Mark facing intense scrutiny, Jane offers advice.

While the Shepherd family attempts to diminish Claire's power, Doug goes off the grid but continues angling to advance his agenda.

Claire tries to tarnish Frank's legacy. Doug provokes Claire by releasing excerpts from Frank's diary. A rift develops between the Shepherds.