Crystal Cove comes under attack from a giant man-baby clown named Crybaby Clown. The town’s new mayor Janet Nettles is approached by a mysterious figure who tells her the only way to save Crystal Cove is to enlist the help of the disbanded Mystery Inc. Nettles finds Scooby, already in the process of breaking out of a prison-like farm. They work together to recruit Shaggy and Fred, and the mysterious figure is revealed to be Velma. They are unable to get Daphne, as she is focused on her relationship with celebrity Baylor Hotner. Crybaby Clown attacks at a town meeting where the gang reveals their return. Fred comes up with a trap involving a donut shop, but his misguided faith in Daphne causes the trap to fail, and Crybaby Clown escapes.
