While viewing an exhibit of ancient Greek artifacts, Shaggy and Scooby accidentally unleash a stone Minotaur. Luckily, Wonder Woman shows up to the rescue...but unluckily, that means that the gang has to spend the rest of the mystery keeping the Wrong Genre Savvy superheroine from slaying a not-so-innocent person.
This episode includes examples of the following tropes:
- Boxing Lesson: Wonder Woman trains Mystery Inc in Amazonian combat; first just Velma and Daphne, later Scooby and the boys too.
- Charles Atlas Superpower: The minotaur's true identity is a former pro athlete which gives him the strength and skill to briefly fight Wonder Woman in hand-to-hand combat.
- Chekhov's Gun: The training the gang gets from Wonder Woman helps them against the Minotaur. For instance, the game of Keep Away she has them play with a ball helps them keep the head of Apollo out of its reach.
- Does Not Know His Own Strength: When Wonder Woman tries to give Velma a hi-five, she knocks Velma down. Wonder Woman apologizes and says she is more used to hanging out with her similarly strong Amazon sisters.
- Friendship Favoritism: Shaggy gets jealous of Scooby hanging out with Wonder Woman, calling her a friend-stealer. Velma isn't particularly fond of it either, because she has to eat Shaggy's extra snacks.
- Heroes Love Dogs: Wonder Woman takes quite a liking to Scooby Doo and frequently succumbs to Cuteness Proximity when she's talking to and petting him.
- Pop-Culture Pun Episode Title: The title shouts out to The Hero with a Thousand Faces.
- Red Herring: A grumpy janitor is suspected of being the minotaur because he's unfriendly and snorts the same way the minotaur does. It's not him.
- What Measure Is a Non-Human?: Wonder Woman believes the minotaur is a real monster and is thus intent on hunting down and destroying it. The Mystery Inc gang, who suspect the minotaur is just a person in a mask, continually have to stop her.
- Willfully Weak: Wonder Woman defeats the Minotaur by smacking it on the backside with her sword and then kicking it into the trap. She admits that the unusual style the gang forced her to use was refreshing.
