Charley Thompson, a teenager living with his single father, gets a summer job working for horse trainer Del Montgomery. Bonding with an aging racehorse named Lean on Pete, Charley is horrified to learn he is bound for slaughter, and so he steals the horse, and the duo embark on an odyssey across the new American frontier.
Charlie Plummer
as Charley
Amy Seimetz
as Lynn
Travis Fimmel
as Ray
Steve Buscemi
as Del
Jason Beem
as Race Announcer
Tolo Tuitele
as Lynn's Husband
Ayanna Berkshire
as Cop 1
Connor Brenes
as Cop 2
Kurt Conroyd
as Nurse
Chloë Sevigny
as Bonnie
Dennis Fitzpatrick
as Old Timer
Rusty Tennant
as Portland Downs Security Guard