Overview
Scooby-Doo! Legend of the Phantosaur is a 2011 direct-to-video film based on Scooby-Doo. The film was released on September 6, 2011. It premiered on Cartoon Network on September 3, 2011.
Plot
Shaggy discovers he has a disorder which causes him to unhealthily overreact to anything frightening, putting an end to Mystery Inc. The gang takes him to a spa resort in the town of La Serena to calm his nerves. While the gang meets the resort owner, Mr. Hubley, Scooby-Doo has a run-in with a dinosaur and keeps it to himself to spare Shaggy's fears. The gang soon meets Professor Svankmajer and her student Winsor, the paleontologists in charge of an archaeological dig, before they see a large "ghost dinosaur". Scooby rescues Shaggy, paralyzed by fear, and is subsequently chased by the dinosaur until they are saved by Fred, who knocks the dinosaur off of a cliff while driving the Mystery Machine.
Mr. Hubley tells the legend of the "Phantosaur": a phantom dinosaur summoned by Native Americans to regain their land stolen by European colonists. Mr. Hubley hypnotizes Shaggy into being confident and fearless so long as he hears a keyword, the same word of which will return Shaggy to his original state of mind. However, no one, including Mr. Hubley and Shaggy, remembers what the keyword is.
From Wikipedia (CC BY-SA 4.0).