Continuing the critically acclaimed sci-fi drama set in a parallel world where synthetic humanoids try to live side by side with real people. Lawyer Laura leads a tense visit of the Dryden Commission to the Railyard, but it looks like rebel Synth Agnes's anger might threaten its success. Mia is forced to confront her past when she comes face to face with Ed, and an evening out for Karen, Sam and Joe turns to tragedy. Katherine Parkinson, Holly Earl, Gemma Chan, Sam Palladio, Ruth Bradley and Billy Jenkins star.