When Mole decides he has had enough tiresome spring-cleaning for one day, the scrappy nonesuch throws down his broom and bolts out of his house looking for fun and adventure. He quickly finds it in the form of the Water Rat, who takes the wide-eyed Mole boating and introduces him to the mysteries of life on the river and in the Wild Wood. Mole also meets Ratty's good friends: the kindly, solid Badger and the irrepressible Toad. Soon, the quartet's escapades including car crashes, a sojourn in jail, and a battle with the weasels who try to take over Toad Hall become the talk of the animal kingdom.