Storyline:
After discovering that the spy agency he works for is hiding a gateway to a parallel dimension, a low-level UN bureaucrat in Berlin is thrust into a shadow world of intrigue and danger and must determine if he can trust his near-identical counterpart in the other world.

Cast:
J.K. Simmons (as Howard Silk, 19 episodes, 2017-2019), Olivia Williams (as Emily Burton Silk, 18 episodes, 2017-2019), Harry Lloyd (as Peter Quayle, 18 episodes, 2017-2019), Nazanin Boniadi (as Clare Quayle, 17 episodes, 2018-2019), John Funk (as Howard, 15 episodes, 2017-2019)