Scooby-Doo and his friends investigate when the old Palace Theater develops a guitar-playing ghost just as it is about to be sold to former rock star turned real-estate magnate Stuart Banyon.

Olivia is super excited to have her best friend come along on her family camping trip. However Francine is not a huge fan of the Great Outdoors and is less than excited about the mud, the bugs, and the idea of sleeping in a tent. It's up to Olivia to help Francine get in touch with her inner nature lover.

When Mr. Krabs gives SpongeBob the only key to the vault holding the Krabby Patty's secret recipe, SpongeBob and Patrick must keep it safe, until it is stolen by a passenger on their train.