Jimmy Benge is excited to celebrate his thirteenth birthday with an ice fishing adventure in northern Minnesota. He's even allowed to invite his best friend, Ryan, to spend winter break at the family's lakeside home. The two boys learn a lot about ice fishing and catch a few panfish but decide to fish for something bigger: Northern pike, the alpha predators of the lake. The trip is fun until one day, while out fishing by themselves, the boys are hit by a sudden, unexpected snowstorm and find themselves fishing on thin ice.