Karen is pregnant by Billy. She doesn't want him to know, but Louise tells him anyway. Billy cleans up his act, but Karen won't trust him until he proves himself. Louise has met the perfect man, one of her customers, but unless they're flirting over a pumpkin risotto it doesn't really work. Donna is trying to sleep with as many men as possible to distract herself from Karl leaving her life, but then he unexpectedly reappears.

Karen dates Justin, the man who won't stop crying. Louise becomes addicted to stealing. Donna finds out that Karl is going to make eighty thousand pounds selling the house that she bought with him.

They are celebrating Louise's birthday and Karen absolutely swears that it will be a girls' night out only.

Karl meets Tanya in the supermarket and accepts an invitation to a party at her house, which turns out to be a double date.

Louise falls for a convicted flasher. Donna sets out to impress old friend Catherine. Karen discovers that Billy has married his Argentinian cleaner to help her stay in the country.

When Donna can't get anyone to go out with her on a Friday night, she ends up at home learning about global warming.