Two teenagers try to come to terms with impending parenthood. Jamie has just finished his exams and his carefree summer is off to a great start. He has crashed a party and hooked up with an older woman, 18-year-old Laura who is also looking for some uncomplicated fun, but thanks to a combination of post-exam euphoria, too many drinks and an available bedroom, they soon find they have one very serious complication on their hands.

Laura is in shock, having discovered that Jamie is only 16 years old, and refuses to speak to him. Jamie feels that Laura is not taking him seriously and decides the only way to get her attention is to propose. Meanwhile, Janet and Alan are in counselling, trying to repair their marriage, but their guidance counsellor Jeremy doesn't really seem up to the job.

Laura is no closer to making a decision on whether to have the baby, but heads off to university anyway. When Jamie finds out she has gone without telling him, he is furious and decides to follow her to Edinburgh - not that he feels he's stalking her. Meanwhile, Beth realises if she wants any chance of getting together with Jamie she's going to have to make her move now.

Jamie's and Laura's parents meet for lunch to discuss the future of their families. Laura and Jamie are rightly apprehensive about a family summit, but even they couldn't have foreseen how badly it would go. Later, while making up the numbers on Beth's double date, Mike faces a sexual dilemma when he's offered a threesome.

Laura is settling in well at Jamie's place - a bit too well. Keith is sick of her being there, Jamie is tired of sleeping on the sofa and Mike and Beth have had enough of not being able to see their mate. Something's got to give, but the eventual confrontation kicks off a much bigger crisis.

Laura is very pregnant, very bored and cannot stop thinking about Jamie so she asks him to take her out - but it is definitely not on a date, it is just a casual shopping trip. Casual that is until Laura goes into labour. Meanwhile, Mike is faking a charity run to raise money to pay for a prostitute and Beth is collecting cash on his behalf, but Mike has not bothered to tell her what he is planning to do with the proceeds.