When Charlie is chosen to go on an important trip to Tennessee to see the country’s first plutonium reactor, tensions in the Isaacs’ marriage only deepen when Abby learns that Charlie is accompanied by Helen on his trip. Back on The Hill, Fritz has a medical emergency – and Frank’s attempt to intervene leads to a shocking discovery.
Elenco: John Benjamin Hickey , Olivia Williams , Ashley Zukerman , Rachel Brosnahan , Daniel Stern , Harry Lloyd , Katja Herbers , Michael Chernus , Christopher Denham , Alexia Fast .