The Kennedys rally to put Jack in the White House, but their difficult past illuminates a deeper struggle.

Jack's progression to Washington appears unstoppable, and when Jacqueline's mother's prophecy that Jack will never be faithful seems true, Joe Sr tries to solve the problem the only way he knows how.

Jack is drawn into the Bay of Pigs crisis, and Bobby and J. Edgar Hoover butt heads over Bobby's desire to control the flow of information from the Justice Department.

Khrushchev moves troops into Berlin, and Bobby announces the formation of the Organised Crime Division which angers mobster Sam Giancana.

Joe Sr suffers a stroke, Rose feels her sons have abandoned their father, and segregation and racism in the South leads to rioting.

Jack's marriage is a shambles because of his infidelity, and tensions run high when the Soviet Union place nuclear missiles on the island of Cuba.