Charles and Dr. Choo get to work grilling two combat veterans about what led them to pursue military careers. Were they mentally tough when they enlisted? Did their time at Parris Island augment their temperament? Finally, what's it like experiencing combat and dealing with the memory when they're expected to plunge back into civilian life? 

We get Zach and Derek to take a break from their jiu jitsu training and answer these questions and more in this special Mental Toughness episode.