When Jim Pazee wakes up one fine spring day, he runs through the jungle laughing and shouting and feeling very silly. Jim has a bad case of spring fever and thinks he needs a cure. But when all the animals offer suggestions to help him calm down, Jim starts doing spring things, like decorating and hiding eggs, dressing up in fancy hats, and planting and picking flowers. Seen everyone else catches spring fever, too, and the jungle is filled with laughter and shouting in celebration.