Biff is worried that Wilma thinks her toy train - Chuggy Choo Choo - is too babyish, so she gives it to Kipper. Biff soon regrets her decision and tries different ways to get Chuggy Choo Choo back.

Meanwhile, Gran has brought the Robinsons an unwanted gift - a giant pencil! Mum and Dad try to find a use for the pencil, but when Chuggy Choo Choo gets stuck, it provides the perfect solution. Will Biff reunite Kipper with the train or keep it for herself? Show less