In a parallel present where the latest must-have gadget for any busy family is a 'Synth'--a highly-developed robotic servant that's so similar to a real human--is transforming the way we live.
Cast:Katherine Parkinson , Gemma Chan , Lucy Carless , Tom Goodman-Hill , Colin Morgan , Theo Stevenson , Ivanno Jeremiah , Pixie Davies , Emily Berrington , Ruth Bradley , Neil Maskell , Will Tudor , Thusitha Jayasundera , Billy Jenkins , Bella Dayne , Sope Dirisu , Danny Webb , Sonya Cassidy
Laura Hawkins begins to suspect there's something unusual about their family 'Synth' Anita.
Niska stages a brutal escape from the brothel; Leo's secret is revealed; George is horrified to be given a new Synth.
Anita saves Toby's life; George tries to break free; Pete is angry at the brothel-murder cover-up.
Laura insists the family take Anita for testing; Leo gets one step closer to finding Mia; Niska gets revenge.
Killer Synth is the breaking news story, and public panic is growing; Joe's secret threatens to destroy the family.
With Joe in exile and the kids tired of their parents' lies, Laura decides it's time to tell the truth.
Karen sets out to George's house to find Niska; Pete is determined to find out who Karen is.
With the Synths in captivity, the devastated Hawkins realise how much Mia means to them.