The movie starts off with Mametchi finishing his new "Transporter Machine". At the same time, Tanpopo goes off to deliver a forgotten item to her mother. Tanpopo and Mametchi are both about to become older siblings. Memetchi and Kuchipatchi arrive at Mametchi's house just in time to see Mametchi try out his invention. Several events result in the aim of the Forwarding Machine to go off course, and Tanpopo is brought to Tamagotchi Planet.