Lego Ninjago: Masters of Spinjitsu Season 15 Episode 8 Episode Title: Kryptarium Prison Blues Episode Description: At the Monastery, Nya finds the blueprints of the Samurai X Mech after Master Wu assures her that she is so much more than her lost powers. Back at the prison, Pythor, a former serpent adversary, warns the Ninja that the Crystal King is freeing villains from prison. Later that night, a couple of Crystal Spiders sneak into the prison to free Pythor! Will the Ninja be able to stop the Crystal Spiders from freeing Pythor? Can Nya still help the Ninja without her powers?