Travis Manawa (played by Cliff Curtis) and Madison Clark (Kim Dickens) are a married couple trying without much luck to blend a family. He is divorced, she is a widow. Travis has a son who lives with his ex and doesn’t want to see him at the weekends, Madison has a son, Nicky, who loves heroin and a daughter, Alicia, who hates long trousers. When Nicky wakes up in a drug den to find his girlfriend eating someone’s face, he thinks he’s gone mad, and so does his family, but it won’t be long before everyone is caught up in that madness. When a riot breaks out in the city centre, Travis and his son take refuge in a hairdressers with a family of three, emigrants from El Salvador, not realising that from now on, all refuge will be temporary.