Robert Zabrinski was trying to buy the film studio from the Milton Brothers.
The group arrived at Miltons Movie Studio, where they were greeted by the two Milton Brothers, famous filmakers, and the unpleasant Robert Zabrinski, a stylish businessman. The brothers explained that a particular Red Knight was causing mayhem and havoc in the studio. The group split up and looked around. One of the Milton Brothers went missing, and a brochure to a theme park was found. The group and the other Milton brother set up a trap for the Red Knight, who was revealed to be Robert. He explained that he was trying to buy the studio, but the brothers refused, so he started dressing up as the Red Knight to scare them and workers away. The missing brother was found, saying that Robert locked him up after he witnessed him dressing up in the Red Knight costume. (Mayhem at the Movies) (Scooby-Doo! Mystery Mayhem)