The year is 1919. The Shelby brothers have returned from the tunnels of France, changed men with "dead man’s eyes." But while the smoke of Birmingham has turned Arthur volatile and Tommy cold, Erin remains the one constant in their lives. Having grown up in the same caravans, she is the tether that keeps them connected to their Romani roots and their humanity. Tommy is now the ambitious leader of the Peaky Blinders, building an empire on betting slips and blood. Everyone in the Garrison—from the brothers to Aunt Polly—knows that Erin is Tommy’s "soft spot." For Tommy, loving Erin is his greatest secret and his greatest fear; in his world, a weakness is a target for his enemies.