Jason and Noah are the star players of Ludwig High's hockey team. After four years as teammates—and lifelong rivals—their feud reaches a breaking point when Jason defeats Noah to become the team's new captain.
As if that weren't enough, Noah mistakenly believes a love letter from Jason is meant for his beloved sister, Sophia. Convinced the notorious playboy is trying to win her over, Noah becomes even more determined to keep Jason at arm's length.
When a locker room fight puts Noah's scholarship at risk, Jason unexpectedly takes the blame for him. To save the team, Coach Miller forces the two rivals into an outrageous team-building program: they're handcuffed together, train side by side, look after each other, attend the school dance as partners, and even share a room for an entire week.
Certain Jason only wants to get close to Sophia, Noah fights every growing spark between them. But as rivalry turns into trust and every challenge brings them closer, he realizes the person Jason has been chasing all along... was never his sister. It was him.
