The Snake King

 Time for the most iconic suits in all of Ninjago!

But before that, Pythor and Skales uncover the lost city of Ouroboros in a desert, while Pythor explains his plan to unleash the Great Devourer.

Back on the Bounty, the ninja learn that Serpentine have been sighted at the Mega Monster Amusement Park, so they change into their new outfits and head out.

Samurai X got there first, however, and already captured the Serpentine. Annoyed, the ninja decide that the first to figure out the samurai's true identity should also be the Green Ninja.

Shortly afterwards, Lloyd stumbles across a group of Serpentine heading towards Ouroboros and follows them in disguise, but is discovered and captured after Pythor wins in a rigged fight against the other generals and becomes leader of all the tribes.

On their way to save him, the ninja are also captured, and forced to fight Samurai X in an arena in the center of Ouroboros, but they manage to escape, with Kai learning that Nya was the samurai all along. He promises to keep her secret, however, abandoning his chance at winning their previous bet.

Various Observations:

-Alright, so why does Pythor know where the lost city of Ouroboros is located? It was clearly lost for long enough to be covered by a whole desert, so I don't think Pythor was even alive back when it was still around.

-Also, why is Skales Pythor's sidekick? That goes against his already established character! It already bothered me last episode, but it's especially obvious here. By the way, we also learn that he doesn't even believe in the Great Devourer's existence. So why does Pythor? Is he just a religious guy, like the Constrictai?

-Why does the postman have a flying bike? Couldn't he have used it when he had to climb up a mountain in "Home" and "Can of Worms"? 

-Huh, the ninja and Lloyd debate "the best way to stun a Serpentine if you don't know what kind they are". Couldn't you tell by their colors? The Fangpyre are red and white, Constrictai black and orange, Anacondrai purple and black, and so on? So far, we've seen no exceptions to this. 

-Why is Wu the funniest character in this show? Him scrambling to find a present for Lloyd was pretty amusing.

-Wait a second, the armor on Jay's ZX suit already has claw marks on it? Sensei Wu should try to get a refund on that.

-Why is Nya just handing out ice cream to random women? Does she work at the amusement park or something?

-By the way, she was once again a more effective hero than the ninja, given that she actually caught the Serpentine, rather than just scaring them off.

-Alright, Wu's excitement over a ferris wheel got me, as did Kai accidentally scaring a passerby by waving the Sword of Fire around.

-Ooh, we even get a montage of Nya being awesome, with her handling three Serpentine attacks and what she believes to be a dangerous accident, while the ninja have to split up and are still late.

-You know, this episode could be resolved so much easier if Lloyd had a phone he could use to alert the ninja.

-How in the world did Skales get fooled by this ... I hesitate to call it a disguise ... costume?

-Alright, they're doing a really good job of making Ouroboros look ancient and imposing. It almost feels like something H.P. Lovecraft would think up.

-Ah, the Venomari antidote is green now. Neat. Also, Acidicus mentions having fought hard for his staff. I'd like to know some of the background here.

-We learn that Skales helps Pythor in order to be second in command. Doesn't he have about the same chances of becoming leader as Pythor does, assuming he doesn't agree to work together? From what we know about Skales, I think he'd be more likely to make himself king.

-Pretty neat foreshadowing , with the fight for who controls the tribes taking place right above the Great Devourer's resting place.

-Wait, hold on, why is someone just letting the ninja access public surveilance cameras? What's up with that?

-Hold on, how in the world did the Serpentine capture Nya? She's in a freaking mech!

-I'm sure you have quite enough of me gushing abou how awesome Nya is by now, but she handled the escape basically by herself, and easily recovered the Golden Weapons after the Serpentine took them.

-Aw, the scene between Kai and Nya is really sweet. It also foreshadows Kai's True Potential, as he puts Nya over his desire to be the Green Ninja, but also serves as fake foreshadowing of him being the Green Ninja, as he was the first to uncover the samurai's true identity.

-Why does Kai carry the Scythe of Quakes seperately, instead of keeping it in the bag witht he other Golden Weapons? That's just kind of odd. Why not the Sword of Fire, his own weapon?

-Fun fact: In the German version of this episode, Wu specifically refers to "brother sharpening sister" instead of the using the gender-neutral "sibling". Just thought you might be interested.