Episode Title:Way of the Ninja/The Golden Weapon.Episode Description:Way of the Ninja: Sibling blacksmiths Kai and Nya meet a mysterious old man Master Wu, who seeks their help to train under him against the threat of his soon to return brother Garmadon and his new army of Skulkin who dominate the Underworld under leadership of former king Samukai, whom Garmadon overthrew. After Nya is abducted, Kai joins Wu's three other students, Jay, Zane, and Cole to find and protect the Golden Weapons of Spinjitzu.
The Golden Weapon: The ninja travel to the Caves of Despair to get the first golden weapon, the Scythe of Quakes, but the Skulkin already beat them there.