Because of his string of pranks, Lawrence Barry is one step away from reform school unless he agrees to mentor Spencer Knudsen, a Norwegian exchange student with Spock-like intelligence but no social skills. During Homecoming week, someone dressed as the school's Viking mascot starts destroying the homecoming floats, and Lawrence becomes suspect #1. As the situation spirals out of control, he realizes that Spencer may be his best friend -- the one he never knew he needed.