Amy and Lulu are collecting star shells on the beach when the bananas run by. They invite the bananas to look at their shells, but the bananas are in a hurry to buy each other presents for their birthday on Friday. They run off to get the presents. Amy and Lulu decide to throw them a surprise party. They go and tell Morgan.
The teddies decide that everything at the party should be yellow like the bananas or blue and white like their pyjamas. Amy makes a card in the shape of a banana while Morgan makes banana biscuits, which he wants to cover in blue and white icing so that it looks like they are wearing pyjamas. Lulu makes paper chains for decorations. They decide to make shell necklaces as well, but Lulu has left the shells on the beach.
The bananas have bought the presents and are going home when B1 trips on the shells. They decide to bring them back to the Teddies, but have too much shopping to be able to do so. Lulu arrives just then and takes the shells back,
Morgan has finished with the biscuits and the 2 female teddies decide to try them. Morgan catches them in the act and tells them that he made 5 specifically for the party. They decide to finish the biscuits while Morgan makes some more the next day.
- This is the first of five episodes in a series showing the events leading up to the Bananas' birthday on Friday. The other four episodes are Bananas' Birthday Tuesday, Bananas Birthday Wednesday, Bananas Birthday Thursday and Bananas Birthday Friday.