It's a hot day and Maisy and Cyril are playing in the sandpit. Cyril gets caught short, but Maisy saves the day; On a snowy day, Charley comes over to play at Maisy's. Together, the two construct an igloo. They are soon joined by a little bird; Everyone's round at Maisy's house, playing a game of sardines. The only problem is that Eddie's much too big to squeeze in with everyone else, so he finds his own way of playing; Maisy's going deep sea diving today, and Dolphin is there to guide her through the underwater world.