Derek's car fails to start. Kevin is astonished at his cheek when he asks him to fix it and slams the door in his face. Liz can't get a straight answer from the twins or Jim when she asks about the size of the extension. Percy complains to Kevin that his work area is unsafe for passers-by. Kevin tells him that he's no choice. Sally has enough of the banging from No.11 and explodes at Steve. Steve doesn't care and tells her to give him a hand if she wants it finished quickly. The police tell Kevin that they've had a tip-off about his servicing and he has to find somewhere else to set up business. Liz begs Jim to get planning permission and proper plans. She doesn't think the extension is worth upsetting the neighbours. Jim is unconcerned. Sally assumes that Derek informed the police out of spite and rows with Mavis in The Kabin. Mavis lets slip that Derek is guilty and feebly defends his actions. Don doesn't know how Gail can be so patient with Ivy. Martin holds his tongue when Ivy ...