In post-apocalyptic Canada, guns don't kill people - slapshots do.
For the mutated tribes trying to survive nuclear winter - which is like normal Canadian winter, just more radioactive - hockey serves as a form of ritual warfare in which communities gamble their resources on the abilities of their squad to score goals and bust heads on the ice.
When a starving Red Deer squad rolls into town desperate for a win (and dinner), the Atomics use the opportunity to test out their post-apocalyptic power grid - an enormous potato - as well as their second line. What could possibly go wrong? Well, the Red Deer could steal the megapotato, for one, prompting a revenge trip down Highway 2 for the Atomics. It all boils down to one game, winner take all... of the megapotato.