Double Episode: Reign Storm

S2 E101: Vlad Plasmius is in the ghost zone, in the lair of the powerful and utterly evil Ghost King. His attempt to steal the Ghost King's Ring of Rage and Crown of Fire only succeed in waking the King from his forever sleep. The Ghost King summons the Fright Knight to pursue his stolen ring, and soon Amity Park is under attack. When the Fright Knight fails to return the treasure, the Ghost King pulls Amity Park into the Ghost Zone and threatens to destroy it. Danny steals Jack's untested battle suit to wage war against the Ghost King. With the help of his ghostly enemies, including a reluctant Vlad, Danny is able to trap the Ghost King back in his forever sleep. The town of Amity Park is freed from the Ghost Zone, and Vlad sneaks away with not only the stolen ring, but Jack's Ecto-Skeleton battle suit, which he hopes to use in the future.