It's early in the morning after the Brooklyn-Bells have returned from holiday and there's someone banging on their front door. It's Mrs Hobbs and she's furious. Waffle left Mrs Hobbs' kitchen taps running and now her home is flooded and there's water pouring out of her front door! But Jess and Simon will be Mrs Hobbs' "knights in shining armour" - Sir Jess and Sir Simon - Brooklyn-Bells to the rescue!