When Olivia opens the bathroom door, the last thing she expects to see is her best friend Nicola giving birth on the floor - and to say Nicola is surprised is an understatement.

She's not ready to be a mum, and she needs Olivia's help.

But Olivia has her own problems - specifically her bullying boyfriend, Jonty, and keeping an eye on younger sister Alice. And then there's Nicola's friend Ben, who's struggling with secrets of his own .