A shock to the financial system increases scrutiny on Mullen's commission. Valerie investigates Proteus. Roger must make a difficult choice.

Cast: Robert De Niro, Angela Bassett, Jesse Plemons, Lizzy Caplan, Connie Britton, Joan Allen, Matthew Modine, Bill Camp, Dan Stevens, McKinley Belcher III, Cuyle Carvin, Gaby Hoffmann