Bas and Ziggy are longstanding best (school)mates, but while stronger Bas does wood-shop, smarter Ziggy enters prep-school. The knaves stay friends, but at the usual summer camp ‘construction village’ each sticks to his new school gang in the tower-building competition, and as girls get involved, really turn on each-other as the prank war escalates. Yet when in trouble, the old friendship takes over again.