Scooby-Doo and the gang in high school.
School has just ended for the summer, and Velma (Hayley Kiyoko), Shaggy (Nick Palatas), and Scooby-Doo (Frank Welker) meet up with Fred (Robbie Amell) and Daphne (Kate Melton) so they can go to meet Daphne's uncle, Thornton "Thorny" Blake V, who has given them summer jobs at his country club in Erie Point.
Daphne Blake is a high school student who has a semi-popular web show discussing the possibility of aliens and supernatural occurrences. Velma Dinkley is Daphne's supportive yet critical online friend, who believes there is a logical explanation for everything. After Velma web chats Daphne following her latest episode, she reveals to Velma that her parents will be moving to Ridge Valley, where Velma currently goes to high school.