Rejected and alone, Karen sets out to George's house in search of Niska. Meanwhile, Pete is determined to find out who Karen really is, but his enquiries reveal a truth stranger than he could ever have imagined. The hunted synths gather at the Hawkins, grateful to Laura and family for providing refuge. As humans and synths live alongside each other in peace, could this be the harmonious future that Leo and co have longed for? But as Hobb gets closer, it may be too late for them to find out.
Elenco: Gemma Chan , Colin Morgan , Katherine Parkinson , Tom Goodman-Hill , Lucy Carless , Emily Berrington , Theo Stevenson , Ivanno Jeremiah , Pixie Davies , Will Tudor , Sope Dirisu , William Hurt , Carrie-Anne Moss , Ruth Bradley .