It's a race to escape when Scooby-Doo and his friends get stuck inside a video game. While sneaking a peek at a laser game based on their own adventures, Scooby and the Mystery Inc. gang are beamed inside the program by a mayhem-causing, menacing monster known as the Phantom Virus. Now, the game must advance successfully through all 10 levels and defeat the virus if Shaggy, Freddy, Daphne and Velma ever plan to see the real world again.