Jack Malik is a struggling singer-songwriter in an English seaside town whose dreams of fame are rapidly fading, despite the fierce devotion and support of his childhood best friend, Ellie. After a freak bus accident during a mysterious global blackout, Jack wakes up to discover that he's the only person on Earth who can remember The Beatles.

The story of Jim Worth, an expat British police officer starting a new life with his family as police chief in Little Big Bear, an idyllic town near the Rocky Mountains. When his small town is overrun by migrant workers from a massive new oil refinery – the wave of drugs, prostitution and organised crime that follows them threatens to sweep away everything in its wake.