The Pippsqueaks, hoping to get away from their own problems at home, join the Mane 6 and Mystery Inc on a mission to save a historical summer camp, haunted by spooky stories of the past.
Upon returning to Equestria with their new dragon allies and warning the ponies of Equestria about Allura potentially invading, the Mane 6 are reunited with Mystery Inc to solve a mystery with Krypto the Super-Dog in Metropolis.
In the season three opener, our favorite ponies regroup with Mystery Incorporated in order to track down the last of thirteen ghosts they had hunted years ago.
On Halloween night, our pony heroes must help Shaggy and Scooby-Doo defeat an evil magician from turning the rest of Mystery Incorporated and the world into monsters.
In the season finale of G5 Adventures, the Mane 6 and Mystery Incorporated solve the Abominable Snowman mystery in the Himalayas and finally defeat Opaline.