Mistakenly believing that he has become an elder, Love Monster gets a job.

Love Monster swaps roles with Delivery Duckling for Swap What You Do Day. She tells him her special delivery code by which he has to do the job in the form of a catchy rhyme, before heading off with a cardboard cut-out of Monster Teddy. But Love Monster starts having trouble remembering the code, and spends his day trying very hard not to make any mistakes.