When we start
The Mustang,
Roman Coleman (Matthias Schoenaerts) is a prisoner who has thrown himself into the shackles of isolated solitude. He doesn't talk to anyone, not even his daughter on the rare times she comes to visit him, and he's basically accepted, in his own way, the idea that the rest of his life is doomed to this miserable solitary existence. While off on a chore consisting of shoveling horse fecal matter, Roman Coleman comes across a wily mustang horse that's apparently impossible to train. Stumbling upon this horse leads Roman to discover a group at this prison consisting of prisoners, under the watchful eye of Myles (Bruce Dern), learning how to train horses as a form of personal rehabilitation.
