When rain water,leaking in from a hole in Caroline's bedroom window, starts dripping downstairs, Charlie suggests that Caroline's entire bedroom be renovated and Dan's father,professional builder Jim, takes on the job. However Charlie interferes so much that it leads to a row and Charlie sacking Jim. He then takes on the work himself, helped by the boys,but the results are a disaster and Caroline reinstates Jim,the proviso being that Charlie keeps out of his way. (thetvdb.com)