Scooby-doo Moon Monster Madness 123Movies | Fmovies | watch movies online. After winning the last 5 seats in a lottery, Scooby-Doo, Shaggy, Fred, Daphne and Velma are going into space in billionaire Sly Baron’;;;s brandnew ship, the Sly Star One. It’;;;s all gravity-free fun until a mysterious alien begins destroying the ship! As the ship breaks down, the crew is forced to land on Sly Baron’;;;s base… on the dark side of the moon! Will the gang unravel this alien mystery? Will Scooby-Doo and Shaggy find snacks on the moon? Will Fred ever take his space helmet off?! Journey to the outer limits with Scooby-Doo to find out!