The Curse of the Golden Master

The Curse of the Golden Master is the fourth episode of the third season of Ninjago: Masters of Spinjitzu.

Plot
The episode opens with the ninja and Nya returning to New Ninjago City, where they find a mob of angry civillians and Cyrus Borg, who is no longer influenced by the Overlord. The ninja agree to go underground to search for the Serpentine, believing that they stole the hard drive containing the Overlord, while P.I.X.A.L. stays behind to assist Cyrus. Meanwhile, the Stranger discusses his plans with the Digital Overlord to obtain a power source for the Nindroids, while Lloyd and Sensei Garmadon make their way through Hiroshi's Labyrinth to stay hidden.

The ninja and Nya search underground for the Serpentine, eventually finding Skales outside of the Stone Army Tomb. Skales brings them inside and tells them how they have decided to adapt to a new life and become more "civilized", choosing not to become involved with any of the Overlord's plans. Acidicus then tells the group about the Curse of the Golden Master, and how there will be a being whose power will be equal to that of the First Spinjitzu Master's. The Serpentine attempted to warn people of this, but were treated as the enemy, to which they fled underground. In the meantime, Cyrus Borg meets with P.I.X.A.L. in his office, with P.I.X.A.L. telling Cyrus of her connection with Zane. Cyrus tells her that she doesn't belong to anyone, even him, and that she is fully independent. Dareth also acts as the substitute teacher for Sensei Wu's students, as they go to the city's aquariam. There, while viewing the Electrocobrai exhibit, the Stranger arrives and shatters the tank. He obtains the Electrobrai while Dareth fends off a shark, saving the students. Underground, the ninja contemplate the situation until an army of Nindroids raids the tomb. The Serpentine scatter, with the ninja defending them and defeating the Nindroids by finding out that the Electrocobrai are their power source. Skales tells them at the Curse of the Golden Master is upon them, and says that they would not be able to assist the ninja because they're choosing to stay out of the conflict. The ninja then return to the surface.

As Lloyd and Sensei Garmadon continue their journey, they're attacked by the corrupt Sensei Wu and various Nindroids. Garmadon battles Wu, while Lloyd uses his golden power to create his ninja motorcycle. He is pursued by various Nindroids using flight gear, although he manages to evade them all before coming to a stop next to a cliff. There, the Nindroid Mechdragon rises up before him, posessed by the Overlord. Wu is holding Garmadon hostage on its back. Lloyd prepares to battle the Mechdragon, but the Stranger unleashes a snake that constricts Lloyd, draining him of his powers. The Stranger then reveals himself to be Pythor P. Chumsworth, having survived his ordeal with the Great Devourer, although his skin was turned white in the process. Pythor brings Lloyd aboard the Mechdragon, to which Garmadon is pushed off the side and into the water. The Mechdragon flies off with Lloyd, and Garmadon emerges from the water, telling his son to be strong and that he would find him.

Trivia

 * Pythor returns!
 * For the majority of the episode, the Ninja wear black gloves unlike the previous three episodes where they didn't wear any, although there is a shot when they are climbing down to the Stone Army tomb where they are not wearing gloves.
 * This episode marks the discovery of the ancient Serpentine prophecy about the Golden Master. This marks the second prophecy that the Ninja know about, and will undoubtedly become a huge plot element. However, unlike the prophecy of the Green Ninja, this is something that must be prevented.
 * When the Serpentine first appeared in the beginning of the series, they were happy to be free from their tombs - now, however, they are perfectly content to live underground and not trouble the people of Ninjago. It is unknown if this is an error or if the Serpentine have become more peaceful during their imprisonment in the Stone Army's former tomb.

Errors

 * When the ninjas and the serpentine arrived inside the tomb, Skalidor is shown to be brown instead of black