While washing Phillip's car, Emma comes up with an ingenious business plan. Get Adil to shrink cars so they are the size of a toy and wash them in the sink instead! Sophie's not so sure, but Emma persuades her. Quick, time efficient and environmentally friendly. What they don't realise is that Phillip has shrunk along with his car, and when Peggy comes to collect hers early, she suspects it has been stolen and the police get involved.