Colleen and Colleen are BFFs AF. Manitoba is where they go to school together, do yoga together, play in a band together, and work together at a boring convenience store. Life is whatevs, but also on fleek. That’s kinda what being 15 and a half is all about. So when two older guys invite the Colleens to a senior party, the girls are determined to go no matter what—even if that “what” is a terrible, secret evil that threatens to destroy everything decent and polite about Canada. Can Colleen and Colleen save the day and go viral? Will those senior boys prove squad-worthy?