The story of "The Wind in the Willows" begins at the arrival of spring where we find the good-natured Mole tired of doing his spring cleaning. Mole decides to abandon his cleaning in order to enjoy the fresh air of spring. He journeys to the river where he meets Rat, whom he quickly befriends. Together the two row down the river ultimately meeting up with Toad at Toad Hall. There they discover Toad’s current obsession with his horse-drawn caravan, one which he quickly abandons for a motorcar when his caravan is run off the road by one.
A fourth friend enters the story in the form of Badger and when it is discovered that Toad’s obsession is becoming self-destructive, Mole, Rat, and Badger intervene to help protect Toad from himself.