S1, E3: Reimagining of the cult 1960s drama. Two enlists Six as an 'undercover' to spy on other Villagers who have dreams of a world outside. These Villagers, known as Dreamers, live in fear of being discovered by Two. Six is both elated and terrified to discover that his friend 313 is a Dreamer, and resolves to save her when she is sent for 'treatment'. But things get complicated when Six finds out that his fellow undercover 909 is having an illicit affair with Two's son 11-12.