When Skylar leaves her former school behind her, she does not know what to expect at the local public school. She is excited that Lakewood High offers a girls ice hockey team, but when the coach of the boys varsity team offers her a spot on the roster, she is quick to leave the cliquey girls behind. An opportunity to play with this elite level team was one she could not pass up, as it meant exposure to college recruiters and a chance to win national championships. Playing on the boys team as a girl proves to be challenging, and Skylar finds herself having to navigate the relationships between her coach and her teammates, as well as the politics of being a female in the hockey world. Additionally, playing on the team with her childhood best friend Tristan Shea brought them closer than they had ever been before, and Skylar begins to think of him as more than just a friend. His outgoing nature and charismatic personality makes it hard for Skylar to keep away, and being her line partner ensures that she doesn't. Skylar's final year in high school is typical in its own right-- filled with friends, feelings, drama, and mean girls. But it is also filled with practices, tournaments, and 17 other boys. Will she skate on thin ice? Or will it give out beneath her?

"Why do you play hockey?" He asked with a sense of urgency to his voice," Callahan why do you play hockey?" She shook her head, not able to find the right words," The box," She finally forced out," I used to play for the box." "Why do you play now?" He asked again. "I play because I love it, and because I made a promise." Callahan Smith has been playing hockey her whole life. Although, she spent most of her time in the penalty box. Being the only girl on a boys team, she thought that was the easiest way. That all changed when the team captain stepped in and changed the way Callahan played. A year later, half way through her last season as a youth hockey player, Callahan and her team are forced to face a tragedy. They only have a few more months to make good on a promise they'd made. It all boils down to the penalty box, after all it only takes one stupid mistake to change the game.