A bump in the road sends Miss Mallard crashing through bushes and into the middle of a field in Holland. Separated from the bicycle tour she and Willard are on, Miss Mallard soon finds herself involved in a smuggling ring mystery. While Willard searches for his aunty, Miss Mallard discovers a code book of clues that lead her to save all of Holland from being flooded.

The show’s own verdict is on its page.