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

A Special Prosecutor interrogates Francis. Remy Danton tries to keep his options open. Stamper wrestles with his demons.

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

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

Claire threatens Frank. Frank makes a politically bold move that may provoke Russia. An event at a campaign stop changes everything.

Formidable as ever, both Underwoods have their eyes on the big picture as they manipulate a potential running mate and push the gun bill.