Fenton wins a vacation, but in order to convince Scrooge to give him time off, he fakes an illness. But then, while on vacation, he not only finds that Scrooge is going to the same location, but also uncovers an international conspiracy to steal Scrooge's gold overseas, and tries to alert Scrooge about it without blowing his cover.
- This is the first episode since his introduction in which Fenton does not become Gizmoduck. His mother M'Ma Crackshell wears the Gizmosuit instead.
- The title is a pun on the title of the 1934 and 1956 Hitchcock films The Man Who Knew Too Much.