Scooby-Doo is the hero of his own story in “SCOOB!,” the first full-length, theatrical animated Scooby-Doo adventure, which reveals how he and his best friend Shaggy became two of the world’s most beloved crime busters. The story takes us back to where it all began, when a young Scooby and Shaggy first meet, and team up with Velma, Daphne, and Fred to launch Mystery Incorporated.