A chaotic duel with characters from Ninjago: Master of Spinjizu and Criminal Case erupts when Jones accidentally receives a mysterious delivery box contain a lego portal to the universe. The portal in the universe just happens to be in Ninjago, Kai Smith’s home, but Kai accidentally teleports himself Grimsborough in into Jones’ universe while sending Naomy to be kidnapped by Captain Soto. Now the two are stranded in each other's worlds. Now Kai must stop Lord Vortech, before he destroys Grimsborough. Meanwhile, Jones must stop Soto marry Naomy.