John Fuller, the President and CEO of Johnny Rockets, America’s largest chain of 50’s diner restaurants, goes undercover posing as a former gym owner competing against another contestant for an open position within Johnny Rockets. John is a divorced father of two and says that the hardest part is not being in the same house with his daughters, but in a way he’s built a stronger relationship with his kids, since he’s had to learn how to take care of them.