Bob Odenkirk describes himself as a 58-year-old dad who worked as a comedy writer for 25 years and didn’t work out at all. But in his next movie, that body is going to do some ass-kicking. And so now we have a workout video that attempts to explain how that happened.

In a video Odenkirk did with Men’s Health, he details the workout plan that allowed him to star in Nobody, a John Wick-style action flick where the dude from Tom Goes To The Mayor kills a bunch of people with his hands and feet.