Mole’s underground home is knocked in when the field is bulldozed by Weasels; the field has been owned by Mr. Toad (Terry Jones), who has sold it to finance his latest fad; caravanning.
Mole (Steve Coogan) flees to the river and meets the Water Rat (Eric Idle), who is getting ready to embark on a picnic.
Seeing Mole’s distress, Rat decides to take Mole to see Mr. Toad. Toad encourages them to travel with him on the Open Road, in his newly bought canary-coloured cart. Disaster strikes when a pair of joyriders in a motor car knock over the cart.