
Howard Silk (J.K. Simmons) is a lowly cog in the bureaucratic machinery of a Berlin-based United Nations spy agency. When Howard discovers that his organization safeguards the secret of a crossing into a parallel dimension, he is thrust into a shadow world of intrigue, danger, and double cross… where the only man he can trust is his near-identical counterpart from this parallel world.

Episode 1
Howard Silk discovers the truth about where he works. The Office of Interchange searches for an assassin.

Episode 2
Howard must work together with his counterpart. Baldwin comes face to face with her past. Emily, from the other side, tries to make sense of her orders.

Episode 3
Both sides turn to diplomacy to resolve a conflict. Emily obtains a special visa. Howard interrogates a suspect.

Episode 4
Both Howards deepen their investigation of the conspiracy. Quayle meets one of Howard's sources. Clare must decide what to do about Baldwin.

Episode 5
Howard discovers another side of Emily. Howard and Emily search for answers about a mysterious drop site. Aldrich and Quayle seek intel from an old friend.

Episode 6
Aldrich questions a not-too recent death in the office. Emily, Howard and Shaw follow a lead. Nadia attends her other's funeral and closes a deal with Clare.

Episode 7
Clare's past is revealed. Quayle suffers through his own birthday party and drinks too much.

Episode 8
The aftermath of the Indigo school discovery takes an emotional toll. Quayle grapples with his wife's new identity.

Episode 9
Howard attempts to thwart the Guest's plans. Howard and Emily chase Kaspar.

Episode 10
A crisis at the O.I. leaves both Howards stranded.