An enigmatic bare-knuckle fighter teams up with a small-time con man who is a low-life fringe player in the seedy underworld, managing and betting on backstreet fighters in illegal fights. He has one goal in life, to bring down the Man, a loan shark and manager of the best fighter in town. Harley hasn't managed a decent fighter in years until Buchinsky walks into his life after swiftly disposing of his competition, to suddenly find himself coerced into a partnership by the fast-talking Harley. What follows is a series of hard-hitting encounters as Harley edges ever closer to his goal, but Buchinsky has his own reasons for fighting. When it comes to the final fight, two questions will remain unanswered: who is going to walk away with everything, and who is going down from... a Sucker Punch!