Charlie Plummer and Steve Buscemi star in this US drama based on Willy Vlautin's novel about a teenage boy's friendship with an old racehorse. The film follows 15-year-old Charley Thompson (Plummer) as he moves to Portland, Oregon with his dad Ray (Travis Fimmel). Drawn to the local racetrack, despite his lack of riding experience, Charley is hired to help out for the summer by owner Del (Buscemi). He quickly strikes up a bond with the ageing racehorse Lean On Pete and when Del decides to sell it, Charley sets off on an adventure with his new companion in search of his estranged aunt.