When fractures within the Synth community start to appear, all hope of stability comes under threat, and both families are brought back to fight for the Green-Eyes' survival.
Casts:
Katherine Parkinson, Gemma Chan, Emily Berrington, Lucy Carless, Colin Morgan, Theo Stevenson, Pixie Davies, Tom Goodman-Hill, Ivanno Jeremiah, Ruth Bradley, Billy Jenkins, Ukweli Roach, Dino Fetscher, Mark Bonnar, Holly Earl