Bob has promised to put a cat flap in his kitchen door for Pilchard, but he gets an urgent call from Farmer Pickles who needs a fence built to keep the rabbits out of his lettuce field. The job done, Spud offers to keep watch that night in case any rabbits get through the fence. However, he dozes off and wakes in the morning to find the fence trampled and the rabbits all over the field. Farmer Pickles calls Bob to repair the fence, but Wendy offers to go instead so that Bob can finish the cat flap. Pilchard is very happy with the results. Meanwhile, Wendy discovers some prints leading away from the fence to a badgers' set. Farmer Pickles realizes the fence must have blocked the badgers' path to the stream. Wendy calls Bob and, inspired by his cat flap, he decides to build a 'badger gate' in the fence - too strong for the rabbits to open, but able to let the badgers come and go when they want. That night Bob and his team quietly watch the badger family pass through the gate with ease.