Follows four senators who live together in a rented house in Washington DC.

The senators adjust to their new roommate, and his girlfriend, as preparations for the Congressional Delegation to Afghanistan continue.

As the re-election battles heat up the four senators travel to Afghanistan as part of a Congressional Delegation.

When another senator dies unexpectedly, Gil John is asked to organize the funeral arrangements. Louis wins the Nevada primary but Robert has to face off in a Pennsylvania debate to cool the competition.