The adventures of two unlikely friends. It's the first day of spring. Big is excited because that means it's time to spring clean the house. Small thinks there are about a million more interesting things to do, but agrees to help out. Big is determined, this year, not to be distracted otherwise it turns into a summer clean, or autumn clean. They find a jack-in-a-box that's been lost under the bookcase, that they just have to play with. Big realises they have been distracted and brings in a bucket of soapy water to wash the walls, but when they stir the water they create a beautiful bubble and they just have to make more. Big realises he's been distracted again and brings in a vacuum cleaner. Small switches on the machine, but it's powerful and he is dragged out of the house and across the grass. Big runs after the machine, worried about his friend, but Small says that riding the cleaner is fun. Big has a go and agrees: this is fun! The rest of the day is spent riding around on the grass. It's only at sunset that Big realises he hasn't cleaned the house. Small says that you can clean the house any day, but you can only enjoy the first day of spring on the first day of spring. And Big can only agree.