When floodwaters threaten a town, the Little Yellow Digger is called to the rescue - but how can it get there? "I know!" the engineer exclaimed. "We've got the perfect thing. Our helicopter! It can fly a digger in a sling." Floodwaters are rising and a stranded town's stop banks are about to burst. The panicked residents are crying out for the biggest digger available. But the helicopter is unable to lift the big diggers, so once again the Little Yellow Digger is called upon to save the day!