While investigating a heist, the ninja discover Prime Empire a legendary unreleased arcade game that suddenly takes control of all other games in Ninjago.

When the ninja connect Jay's disappearance to Prime Empire they set out to Dyer Island to seek answers from the game's designer the elusive Milton Dyer.

Cyrus Borg discovers a shocking secret about Prime Empire while the ninja battle an escaped Mechanic in their attempt to reach Level Thirteen and enter the game themselves.

The ninja materialise inside Prime Empire and discover a squadron of fearsome Red Visors waiting for them and are pursued through a bizarre sprawling marketplace.

The stoic samurai warrior, Okino, is a serious, duty-bound warrior who is unaware that Prime Empire is a game, since he is part of it.

Okino leads the ninja into the first of Terra Karana's deadly challenges and they are ambushed by deceiving creatures, the Whack Rats. Lloyd ties up the leader, a rat named Richie.