In this 2009 film directed by Brian Levant, viewers are taken back to the origins of the beloved Mystery Inc. gang. The story unfolds as a group of high school students, Fred, Daphne, Velma, Shaggy, and their talking Great Dane, Scooby-Doo, come together to solve a supernatural mystery that haunts their school. As they navigate through a series of spooky events, the group learns the importance of teamwork and friendship. The film stars Robbie Amell, Kate Melton, Hayley Kiyoko, and Nick Palatas, who bring the iconic characters to life. For those interested, the movie can be viewed for free on 123Movies / Movies123.