LEGO Scooby-Doo! Blowout Beach Bash (2017) on Netflix

Plot summary

The gang finishes a museum case and, at a guard's suggestion, drives to Blowout Beach for the annual Bash. Shaggy, Scooby and Daphne tease Fred and Velma for having no fun beyond mysteries, so the pair aim to be crowned Captains of the Bash. They arrive at a silent boardwalk. Rob and Laura Holdout, who run the Holdout Inn, say two ghost pirates came that morning, scared off the teenagers and took the captain hats from their children, Chad and Krissy. Rob tells of the first Bash, Captain Brutamore Bash, Pirate Queen Bingo Bell and a lost treasure. Businessman Dwight Monkfish turns up beside the sheriff, a deputy and his assistant Mitzi Capaletto, and blames the Holdouts for the attack. They deny it. Chad and Krissy arrive and mock the gang, who offer the police their help as mystery solvers.