The youngest of three surfing brothers, Stack was born in Sebastian, Florida, where he began riding waves on a boogie board at three.
In February, Quiksilver sent him to Australia to train with the surf coach Mick Cain, who used video analysis and mental techniques to improve Stack's contest readiness.
[citation needed] Stack won the wildcard and competed in the ASP 2011 Quiksilver Pro New York in September against the world's best.
In the film, Stack credits his mother for being the guiding force behind his life and providing him the opportunity to pursue surfing from his early days all the way through his competitive achievements.
He currently is sponsored by Volcom, Spy Optics, Chilli Surfboards, Unsound Surf Shop, PP448, and Rockstar Energy Drink.