Ninjago | S2E8 | The Day Ninjago Stood Still

Skales is crowned as the Snake King, and as his first act, he plans to destroy the foundations of Ninjago, bringing it down around the population. At the Mojo Dojo, Lloyd is continuing his training, while Sensei Wu and Misako prepare to go over her research on the prophecy; Wu is slightly uncomfortable because of her relationship with Garmadon and the fact that he could have been her husband. Everything is stopped when the Serpentine begin their destructive campaign, sending the city into chaos. But the Serpentine come up against a barrier, an ancient door inscribed with carvings which look like Skales. He finds a switch that opens the doorway, revealing a vault where the Stone Army rest. The Great Devourer's venom melts through the roof of the vault and starts dripping on the statues, bringing them to life. They defeat the Serpentine and exit the vault, which closes behind them, trapping Skales and his people underground once again. The Stone Army rises and the city begins to evacuate, with the Ninja providing transport for those left behind, including comic-book writer Rufus, Dareth and the Bank Manager. The Ninja, with Lloyd, Nya and the Ultra-Dragon, gather the people and flee Ninjago City, though Misako stays behind to get her research and she and Sensei Wu are nearly left behind. Meanwhile, on the Dark Island, Garmadon is guided by the Overlord to an ancient orrery-like clock, designed to count down to the final battle. Garmadon dons the Helmet of Shadows, which both starts the clock and gives him command over the Stone Army.