Based on the Marvel Comics character, WONDER MAN centers on Simon Williams (Yahya Abdul-Mateen II), an actor looking for his first big role, and Trevor Slattery (Ben Kingsley), an older actor whose career has faded and meets Simon by chance -- or does he? Because not only is Trevor an actor, he's a former criminal who managed to evade part of his prison sentence. That's how Agent Cleary (Arian Moayed) of the federal United States Department of Damage Control manages to get to Trevor: Pretend to befriend Simon, spy on him, or go back to prison. It seems Simon isn't just a humble actor; he's also hiding superpowers that make him extremely dangerous according to the DODC. And when Trevor and Simon both try to earn roles in a remake of the vintage superhero film Wonder Man, things get really complicated.