Mr. Dressup, Casey and Finnegan investigate live worms. Mr. Dressup makes a paper-bag owl mask for Casey. Later on Mr. Dressup and friends act out the story of an unhappy duck. Then Mr. Dressup has a bad day when Mr. Backwards plays a joke on Alligator Al at the Trading Post. And finally, Mr. Dressup, and Casey and Finnegan putting their own twist on the fairytale story of Jack and the Beanstalk.