Nathan is a twelve year old boy with Down syndrome. His mother Janelle is very protective and calls him her hero. But when Janelle witnesses a drug deal she becomes a target of the dealer. Nathan and Janelle are attacked, but Kersey, a man who hires out as a problem solver, steps in and saves them. However, with Janelle unconscious and Kersey not wanting any police involvement, he stages the scene to make it look like Nathan is the hero.
His plan backfires though as Nathan believes he is a real life superhero and goes out to save people. His efforts put him in constant danger which Kersey must extricate him from before he gets hurt.
But when a mobster, who is chasing Kersey kidnaps Nathan for leverage, Kersey is forced to hunt them down knowing to save Nathan he will have to exchange his life for the boys.