When Wilfred the Worm meets up with Sigmund the Snail early one morning, he does not know what an adventure he is about to have! Loathsome Lee is about to turn Wilfred's world upside down. From the safety of the compost mound Wilfred finds himself captured and thrown into a jam jar where Loathsome Lee has wicked plans for this wriggly worm! But Wilfred is about to teach Loathsome Lee that he should Leave Well Alone!