Two guys, two girls, two thousand dollars, and one epic water gun battle.
Senior year? It's all about Senior Assassin, a yearly water gun tournament where the last team standing wins a cool two grand. Connor wants nothing more than to split that prize with his best friend, Josh.
When the guys' mission is put in jeopardy by Molly—thanks to her crush on Connor—Josh concocts a plan to thwart her, one that involves his academically-inclined sister, Peyton...but as Peyton is forced to choose between chemistry class and chemistry with Connor, who wins and who loses?
One thing's for certain: When Connor, Peyton, Josh, and Molly load their weapons, someone's bound to get shot through the heart.
The idea for a water gun tournament didn't originate with Niki (much as she'd like to claim credit). Unofficial games similar to Senior Assassin take place at various high schools and colleges. Water guns, NERF guns, or even stickers are used to eliminate players. For more info, check out the Wikipedia page on the subject.