The Monster Squad is a club of pre-teenagers who idolize classic monster-movies and their non-human stars. They hold meetings at a tree-clubhouse in Baton Rouge, Louisiana. Club leader Sean (Andre Gower), whose younger sister, Phoebe (Ashley Bank), desperately wants to join the club, is given the diary of legendary monster hunter Abraham Van Helsing (Jack Gwillim), but his excitement abates when he finds it is written in German. Sean and the rest of the Monster Squad—his friends Patrick (Robby Kiger) and Horace (Brent Chalem) -- go to visit an elderly man, known as the "Scary German Guy" (Leonardo Cimino), actually a kind gentleman and a former Concentration camp, to translate the diary.