Der Hausmeister mit der Götterfaust

On a luxury airship, David KO’d world champion Santos with a single punch，then rips open his enemy’s chest to avenge his mentor. On the run, he hides as a janitor to protect Anna and her daughter. When her ex injures the child and rigs a savage bet, David tanks a full punch and blasts him out cold. As a cyborg smashes in, David crushes it one-handed—dominating all.