- 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
Laura begins to believe that Anita may be able to develop human traits after meeting a woman who claims her synth is also sentient though whilst she is out Joe has sex with Anita. Leo meets up with Matty but she refuses to admit knowing Anita . However Leo and Alex call on George, who worked on the original synth project with Leo's father and reveals that Leo's father imbued several synths with an alternative programme to give them consciousness. Leo then gets a call from Niska, who has infiltrated an undercover fight club where synths are systematically smashed up but where she has attacked the human punters before escaping. Meanwhile Laura and Joe are amazed to find that Anita is not the brand new model they were led to believe but a fourteen year old synth who has been reprogrammed.