Melody wants to go to the park, but Mum makes her promise to make her bed. Melody gets sidetracked with dressing Fudge as a princess. Mum is ready to go to the park, but she doesn't realise Melody hasn't kept her promise to make her bed. Melody thinks she will do it when she gets back.
While in the park Melody is feeling sad that she didn't keep her promise. Mum, not realising the reason for Melody being sad, finds some music to cheer her up. She chooses Fantasia on a Theme by Thomas Tallis, composed by Ralph Vaughan Williams.
Melody imagines a princess in a castle who breaks her promise to a frog. As Melody and Mum leave the park she tells Mum she has broken her promise. Mum isn't cross and Melody promises to keep all her promises to Mum.