Howard Silk discovers the truth about where he works. The Office of Interchange searches for an assassin.
Prime’s effort to stop the assassinations leads him to look to Howard and the killer’s double for help.
Prime looks to stay close to Howard as he fights to stop Baldwin’s return to the Other Side.
Howard discovers some shocking differences in his life on the Other Side.
The search for a spy inside OI uncovers new details about the security breach.
As Baldwin confronts Clare with a demand honor their deal, Prime’s investigation into espionage produces an unexpected suspect inside OI.
Groomed from childhood to be a spy inside OI, Clare faces exposure at a crucial point in her mission.
As Howard and Emily Prime learn the truth about Indigo, Quayle struggles with the news that Clare is spying for the Other Side.
Howard learns the truth about his wife as the Other Side conspiracy to infiltrate OI unfolds.
Howard tries to escape the Other Side and reunite with his ailing wife.