Stan's plans are wrecked by Carol's surprise admission. Chloe has a big decision to make. Self-sacrificing Sarah solves two expensive problems for Richard and Eva's big day.

The two opposite 'Grease' themed parties eventually merge into one, with a drunk Sarah embarrassingly misinterpreting Jason's invitation then misunderstanding Eva's reactions. Kieran's happy though.

Misunderstandings abound. Sarah feels guilty and jealous, but makes peace with her father. Stan finally makes an unusual proposal to Carol. Richard gets his Polish words mixed up. Yet there may be hope on the horizon.