Humans

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.