Two parties are in progress; one features a group of kids and the other, across town, features their parents. Scott is the guy hosting the kitchen party, so-called because his parents have made it clear that the rest of the house, which is spot-less, is off-limits. At the other end of town, Scott's parents and two other couples are also in party mode and their dinner is a more druken affair than their kid's bash. Les Jr, whose parents are at the grown-up party, has a series of fender-benders outside the liquor store, while his dad gets into a fight with Scott's father, Brent, when Brent suggests that Les Jr may be gay. Events take a turn for the worse when the parent's arguing gets more violent and Scott's girlfriend Tammy takes off with Scott's arch rival--his brother Steve.