Bing plays with a new orange balloon but when he bounces on it too enthusiastically, it pops. Bing is sad to lose his new toy, so Flop helps him put the balloon fragments in the Bye Bye Box, a memory box where things too broken to be fixed but too special to throw away are kept.

Bing is busy building a tower as tall as he is with his blocks, and is upset when Coco arrives and hijacks the blocks so that she can make a rainbow pattern with them instead. When even Charlie wants to play with the blocks, it is clear a new game needs to be found so that they can all play together.