A new mum at the school gates attracts the attention of Julia, Liz and Kevin. Does high-flyer Meg really have it all? Meanwhile, Julia agonises over a promotion and the gang have a night out.

The gang are delighted when Kevin books a cottage for them to spend half term in the countryside with all their kids.

As a nit pandemic sweeps the school, Julia stands accused of triggering a second wave, so she throws a nit treatment party that brings all the drama (and headlice) to her door.