When Marcus moves to a new town, he doesn't have any friends. While practicing football for impending tryouts, he strikes up an unlikely friendship with former NFL star Charlie Popovich, nicknamed "The King of Pop". Charlie is a charismatic prankster, and the best football player Marcus has ever seen. But when his behavior starts getting more and more erratic, Marcus learns the secret that Charlie's family is desperate to hide: Charlie is suffering from early onset Alzheimer's from the concussions he sustained while playing professional football.
As Marcus starts at his new school, he meets the starting quarterback: Troy Popovich. Right from the beginning, Marcus and Troy disagree - about football, about Troy's ex-girlfriend Alyssa, but most of all, about what's good for Charlie's future. Marcus is betting that he knows what's best for The King of Pop. And he will risk everything to help his friend.