Danger Mouse S00 E01 The Mystery Of The Lost Chord

In this pilot episode, Danger Mouse and Penfold are dispatched to Loch Ness to investigate the theft of bagpipes and increased activity of the Loch Ness Monster. They uncover a plot by Baron Greenteeth (known in later episodes as Baron Greenback) to find "The Lost Chord," a musical note capable of causing great destruction.