A group calling themselves the "New Ninja" tries to stop a vengestone smuggling mission while the ninjas attempt to deal with Nya's disappearance.
On a ship out at sea, a sailor falls into the water during a perilous storm. To the crew's surprise, he's quickly placed back on board.
The ninjas' investigation into the vengestone smuggling mission leads them to an abandoned subway line — where they run into the New Ninja.
The ninjas visit the mayor with an unusual appeal: to request the release of one of their worst enemies from Kryptarium Prison!
In a strange twist of fate, the ninjas successfully break Aspheera out of prison. But to save Nya, they'll also need to steal back Aspheera's staff.
As they wait in the monastery for the ninjas to return, Aspheera and Master Wu compete in a series of tests of strength and cunning.
After freeing Aspheera to save Nya, the ninjas land up in Kryptarium Prison, where they are surrounded by their old enemies.
Crystal spiders continue to recruit villains to join the council of the mysterious Crystal King. Nya is reminded of her days as Samurai X.
While the ninjas are tasked with prison labor in the desert, Nya and Dareth intercept the bus and help them escape.
After splitting up with the others, Zane, Kai and Dareth make their way through the desert and catch a ride with a girl who ran away from home.
The ninjas reunite at Twitchy's and try to figure out which villains have already joined the Crystal King's council — and who will be next.
The ninjas try to track an undercover Lloyd as a crystal spider leads him under Ninjago City — and straight to the council of the Crystal King.