- Stars: Adam Astill , Alicia Woodhouse , Caroline Lee-Johnson , Colin Morgan , Danny Webb , Dominic Mafham , Ellen Thomas , Emily Berrington , Gemma Chan , Ivanno Jeremiah , Jack Derges , Jill Halfpenny , Jonathan Aris , Joshua Hill , Joshua Johnson , Katherine Parkinson , Lucy Carless , Luke Mordue , Manpreet Bachu , Matt Sapsford , Neil Maskell , Neil McKinven , Nigel Boyle , Nikolaos Brahimllari , Paul Blackwell , Paul Kaye , Pixie Davies , Rebecca Front , Ruth Bradley , Sope Dirisu , Sophie Gooding , Sophie Slavin , Spencer Norways , Stella Gonet , Stephen Boxer , Theo Stevenson , Tom Bell , Tom Goodman-Hill , Tor Clark , Tyana Perez , Will Tudor , William Hurt
Leo sends Niska to George for her own safety, though Vera is suspicious. George tells her that Hobb worked with him and Leo's father David in creating the synths and when Pete, still angry with his wife for her dependency on Simon, arrives to tell George that Odi has been sighted, he hides Niska. Mattie meets Leo to discover Anita's original identity but Anita is not forthcoming and Mattie returns home with her. Leo is bitterly disappointed as he needs all the original 'super' synths to come together to achieve advanced consciousness. He is unaware that Hobb's experiments on Fred make this unlikely. Back at the Hawkins' house Laura discovers that Joe had sex with Anita and throws him out.