It's 1977 and joined-at-the-hip teenagers Debbie and Sue are having the time of their lives, hanging out on Cronulla Beach and fantasising about getting into the Greenhills gang, the bronzed surfers and their chicks who rule the beach. But Debbie and Sue are blissfully unaware of the sexual and social mores of the group they long to join, and just as unaware of the tangled sexual and emotional lives their parents lead.