Rise of the Snakes

Peace has come over Ninjago, and the Ninja are taking a break from training to play video games. After being scolded by Sensei Wu, Nya comes running in, announcing that Lord Garmadon had returned and was spotted heading to Jamanakai Village. The Ninja rush off and fly there on their dragons. When they arrive, the supposed "Lord Garmadon" was actually Lloyd Garmadon, his son. Lloyd tried to steal the candy from the village, but the Ninja stopped him. As the Ninja head back to the Monastery, Lloyd accidentally stumbles upon the ancient Serpentine tomb of the Hypnobrai. Slithra, the Hypnobrai general, accidentally hypnotizes himself and Lloyd controls him. Back at the monastery, the Ninja tried to have a tournament to ser who was the destined Green Ninja, bit Kai almost sets the place on fire with his sword. The sensei scolds the Ninja, and Lloyd takes over Jamanakai Village where Nya is at the moment. The Ninja rush off to save her and find the entire village was hypnotized by the snakes. The Ninja fight and the snakes retreat, except Skales who partially hypnotized Cole. The Ninja and Nya, along with Sensei, head back to the monetary to train against Lloyd and the Serpentine.

Home

Back in training mode with the looming threat of Lloyd and the Hypnobrai, Zane wanders after a Falcon and finds Lloyd's new base (a playhouse he commanded the hypnotized leader to build). The Ninja succeed in destroying the base, though they are nearly thwarted by a hypnotized Cole. They are only saved by Sensei Wu's use of the ancient Sacred Flute, used to drive the Serpentine underground, to break Cole's hypnosis. But then the Hypnobrai leader is defeated by his treacherous second-in-command Skales, who steals back the staff, sends Lloyd away, and destroys the Monastery. Homeless, the Ninja are guided by the Falcon to a wrecked ship, the Destiny's Bounty.

Note: First Appearance of The Bounty

Snakebit

Lloyd unlocks a second tribe - The Fangpyre - to help him regain control and have his revenge on the Hypnobrai. The Ninja are busy cleaning and setting up their new HQ aboard the Destiny's Bounty with modern features, but are called into duty when the Fangpyre attack the junkyard where Jay's parents, Ed and Enda, live. The Ninja, especially Jay, must rush to save the pair from the transforming venom of the Fangpyre...

Never trust a Snake

After the Fangpyres join forces with the Hypnobrai, Lloyd releases Pythor - the last remaining snake of the Anacondrai tribe. Pythor, pretending to be his friend, steals a map from him that shows where the two remaining snakes tribes dwell. Sensei Wu then takes Lloyd under his wing.

Note: First appearance of Pythor.

Can of Worms

Lloyd moves in and pranks all the Ninja, turning Zane's suit pink. Meanwhile, Pythor has awoken the Venomari and the Constrictai and plans to unite them under him. In the process, he steals the Sacred Flute. The Ninja go and foil the plan for unity, but are nearly captured. It is only Zane's pink suit that enables them to escape with their mission complete.

The Snake King

After finding the ancient Serpentine city of Ouroboros, Pythor, through a devilish trick, declares himself to be the Snake King, the destined leader who will reawaken The Great Devourer - an ancient, seemingly immortal beast who will consume all of Ninjago. Lloyd sees this, but is discovered and made prisoner. The Ninja, captured by the Serpentine while trying to rescue Lloyd, are saved by Samurai X, a mysterious warrior who fights against the Serpentine, and Kai makes a shocking discovery about his sister...Nya is the samurai!

Tick Tock

When the four Ninja follow the mysterious falcon into the woods, they stumble on a hidden work shop where Zane learns the secret about his past; he is a nindroid designed to 'protect those who cannot protect themselves'. He becomes the first Ninja to unlock his true potential.