Baby is a getaway driver in Atlanta, Georgia. When he was a child, a car accident killed his parents and left him with tinnitus, which he blocks out by listening to music on iPods. He ferries crews of robbers assembled by Doc, a heist mastermind, to pay off a debt he incurred after stealing one of Doc’s cars. Between jobs, he creates remixes from snippets of conversations he records, and cares for his deaf foster father Joseph. At a diner, he meets a waitress, Debora, and they start dating.
Baby’s next robbery goes awry after an armed bystander chases them down, but Baby evades him and the police. Having paid his debt, Baby quits his life of crime and starts delivering pizzas. While Baby is on a date with Debora, Doc insists he join a heist at a post office, threatening to hurt Debora and Joseph if he refuses.
The crew consists of easy-going Buddy, his sharpshooter wife Darling, and trigger-happy Bats, who takes an immediate dislike to Baby. While the crew attempts to purchase illegal arms for the job, Bats realizes the dealers are police and opens fire, killing them all. Afterwards, Bats forces Baby to stop at Debora’s diner, unaware of Baby and Debora’s romance, and nearly kills her in a hold-up.
Doc, furious at the botched deal, tries to cancel the heist, but Baby convinces him to go through with it. He attempts to flee later that night, hoping to take Debora and leave Atlanta. He is stopped by Buddy and Bats, who have discovered his recordings and believe he is an informant; when they and Doc hear his mixtapes, they are convinced of his innocence.