Scrambler is desperate to help Bob build a drying barn for Farmer Pickles sunflower farm. Scruffty is also excited about the building job and runs and jumps about getting in everyone's way. Bob gives Scrambler the job of taking Scruffty for a walk to keep him out of trouble. Reluctantly, Scrambler agrees while Bob and the other machines get to work on the barn. Scrambler decides to try and wear Scruffty put so that he can get back to the building job, but soon realises that Scruffty has even more puff that he does! While Bob completes the barn and gets to work installing a special drying oven, Scrambler tries a game of hide and seek to wear Scruffty out. Suddenly Scruffty discovers the most amazing off-road course Scrambler has ever seen! Excitedly, Scrambler and Scruffty compete, showing off their off-roading skills. They have a wonderful time until they are both absolutely exhausted. At the building site, and with the drying barn fully built, Bob and Wendy wonder where Scruffty and Scrambler have got to. Just then Farmer Pickles arrives with Scrambler, he found them both fast asleep in a clearing! Scrambler is chuffed to have made a brand new friend and concedes that dog walking is wicked after all!