Summer 1979. Joined-at-the-hip teenagers Debbie and Sue are back. They're having the time of their lives, hanging out on Cronulla beach with the Greenhills gang, but there's been a power shift. Sue has taken up surfing and Gary has become something of a leader. While he and Debbie are still going strong, Sue is still in want of a boyfriend, and Cheryl is in want of an abortion. It's all change for the parents too. Pam and Roger's finances are in trouble when she accidentally maxes out their bankcard. Increasingly disenchanted with his new advertising job, Roger eventually disgraces himself and is fired. Meanwhile, things for Gary's mum Yvonne are looking up. Now that Ferris has gone, she has taken a lover and feels free for the first time in her life. But a misunderstanding threatens to change the fate of Debbie and Sue's friendship forever.