The gang takes some time off to visit a fair and watch some lady wrestling but when a phantom shows up to break up the match, mystery Inc. steps in to investigate. The phantom is harassing a female wrestler, Honey Smack. The gang sets a trap substituting the real Honey Smack with Velma as the Phantom takes the bait but is captured by Shaggy and Scooby, by accident. The phantom turns out to be the top two wrestlers, including Honey Smack. They were planning to split the prize money between each of them before the gang exposed them.
Perhaps with a few pages more, "Scooby Smackdown" could have been an appetizing Scooby-Snack. The out of character behavior however is more damaging. The author's aims are clear. The certainly talented Ms. Denson attempts to marry two genres: cartoons and live action cartoons like the classic women's wrestling of cheesy Mexican films.
The problem with the story lies in the execution. I cannot see Daphne interested in women's wrestling, yet it is she who says "I want to see the women's wrestling! That looks like fun!" The story would have been better had the referee called in a favor that got the gang to investigate the women's wrestling at the carnival. Another sensible scheme would have been to have Shaggy--who watches wrestling on television with Scooby as the story mentions--pull the gang over to the matches. As it stands, the story just seems off and never loses that feeling.