Garmadon's ultimate weapon, the Garmatron (Which in effect is a giant Cannon), is completed. The Overlord, the Stone Army, and Garmadon drive the vehicle to the coast of the Dark Island, but not before testing it out on Nya. The Ninja pursue Garmadon to the coast, and discover that Nya has turned evil, gaining all of Garmadon's dark abilities in the process. Kai, Jay, Zane, and Cole stay behind to deal with Nya, while Lloyd, Misako, and Sensei Wu rush to stop the Garmatron. They fail, and Garmadon turns Jamonkai Village, and the town around Four Weapons evil. The shift in the balance of good and evil allows the Overlord to poccess Garmadon's body and begin to transform into his original form. Lloyd challenges him, but is injured in the resulting battle. The Overlord attempts to turn Lloyd, Wu, and Misako evil with the Garmatron, however the Tinkerer appears in Destiny's Bounty, and crashes it into the missle before it hits them. The whole Stone Army and the Overlord create a portal to Ninjago City, and head there to turn the rest of Ninjago evil. With the Destiny's Bounty now destroyed, the Ninja have no way to get back accross the sea and stop them.