Episode two of the four-part series, "The Evolution of Punk," aired on FOX Sports 1 earlier this week, chronicling Phil Brooks' (a.k.a. CM Punk) journey from the World Wrestling Entertainment (WWE) ring to the Ultimate Fighting Championship (UFC) Octagon.

If you missed episode one, watch the full video replay right here.

"Punk continues his quest to become an MMA fighter," the official YouTube description reads. "His wife reluctantly attends a sparring session to see his progress. The couple decides to move to Milwaukee to be closer to the gym, but just as everything is starting to come together for the fighter, he experiences a devastating setback."

That setback was documented right here.

Brooks (0-0), after nearly two years of training, will finally make his Octagon debut at the upcoming UFC 203 pay-per-view (PPV) event inside Quicken Loans Arena in Cleveland, Ohio, on Sept. 10, 2016. Waiting for him will be regional import Mickey Gall.

For much more on their upcoming welterweight showdown click here.