AMERICAN GRIT: Jim Vaglica – “The Boston Cop”. AMERICAN GRIT, a new, 10-episode competition series starring WWE Superstar John Cena. Sixteen of the country’s toughest men and women will be split into four teams as they work together to face a variety of military-grade and survival-themed challenges. AMERICAN GRIT airs in 2016 on FOX. Cr: Olugbenro Ogunsemore/FOX