All of Nothing

 After the huge revelation we got last episode, this episode is the last regular episode before the two-part season finale.

At the begiining of the episode, the ninja track down and defeat a Serpentine in order to question him about Pythor's whereabouts. Realizing that they can't catch up to him before he colelcts the last Fangblade, they decide to instead steal the other three Fangblades, leading them to break into an underground Serpentine fortress through the Constrictai tomb alongside Wu and Nya. Despite their best efforts, however, they get captured when Pythor gets back with the last Fangblade. 

When Lloyd tries to help them, the Serpentine merely laugh at his attempt, and Garmadon and his skeleton army show up to help the ninja, leading Cole to take all four Fangblades.

That evening, Garmadon leaves the ninja, but tells Lloyd how proud he is of him. Unbeknownst to anyone, however, Pythor has snuck aboard and now plots to take back the Fangblades.

Various Observations:

-Wow, the ninja look genuinely intimidating in the scene at the beginning of the episode. 

-Erm, maybe don't put the Golden Weapons so close together? That seems like a seriously bad idea, just saying.

 -Alright, Zane pointing out the obvious hole in Pythor's plan, and Spitta immediately doing a 360 was hilarious.

-Like in "The Snake King", the beginning of this episode feels very lovecraftian. Spitta even sort of follows the classic archetype of the mad cultist that works to free an eldritch being which will turn on it's followers.

-Hm, Wu tells us that three weeks have passed since the last episode. That's way more than I was expecting, to be honest.

-The Bounty's systems are now voice-operated. I don't think that will ever be the case again, so one has to wonder why they didn't just show Nya typing something into the computer.

-Wait, wait, wait. Why are Fangtom and Acidicus not shown alongside the other generals? And why are Fangdam and Spitta shown in their place?

 -Zane's pun made me chuckle, I'll admit.

-Each ninja trained to counter a specific tribe of Serpentine, but what if, say, a Constrictai attacks Jay? Or a Hypnobrai goes for Cole again? This plan doesn't seem all that thought out. 

-I like Wu's joy at getting to come along with the ninja.

-Skaildor, Acidicus and Fangtom finally get to appear again. It's been ages since they last showed up!

 -So what sort of files is Garmadon stealing from the ninja? There's nothing I can think of that would give him an advantage. Well, maybe the Bounty's blueprints, so that he could find it's weakspots, but even that doesn't sound all that convincing.

-I love the conflict between Lloyd, who's angry that his father abandoned him, and Garmadon, who didn't want his son to be like him. Both of them have valid points, and clearly love each other. That is why they are even having this fight, after all.

-Why did Fangtom think it was a good idea to bite Jay's armored arm? His left arm is still vulnerable, why didn't he go for that one?

-The fights are really good. They show just how far the ninja came, compared to when they first fought each tribe.

-How, exactly, did the Serpentine seperate the ninja from their equipment? If any of them entered the cage, surely the ninja would have beat them, no?

-Wait, Wu claims the chamber was built from Vengestone. Doesn't he mean the cage? Because if this huge underground fortress was built from Vengestone, I do have to wonder why the Overlord ever needed to buy it from Vangelis, if he could have just used the one the fortress was built from. 

-So ... abiut Kai's plan ... He got onto the chains dangling around the room, yeah? So why didn't he, oh, I don't know, try to grab the Golden Weapons? If he had the Sword of Fire, he could've used his elemental powers again, since earlier the ninja were able to use their powers through the Golden Weapons, even though the chamber is allegedly made from Vengestone.

-I love that Zane and Jay's greatest concern is that they can't play checkers/chess.

-Garmadon and his skeleton army coming to the rescue is hype and all, but I do have to point one thing out. When asked why they would help Garmadon, even though, according to Pythor, he betrayed Samukai (and when did that happen? Samukai betrayed Garmadon, not the other way around), Kruncha states that it's because everyone hates snakes. So because of racism?

-Cole being the one to retrieve the Fangblades and save the day is a neat inversion of what happened to him in the first two episodes, where it was because of him that the Serpentine managed to raze the monastary. 

-Aww, Garmadon's farewell to Lloyd is really touching. 

-I'll be honest, this episode really isn't my favorite, and that may be because it's purely filler. Just try to imagine what would happen if the ninja didn't get the Fangblades. That's right, they'd still have to try and stop the Serpentine on their way to Ouroboros, just from a different starting point. Yeah, Garmadon would still be around, but you could write him out of the plot in a different way. I guess it's nice that the ninja get to show how much they have learned in the past ten episodes, but that doesn't feel like it justifies the existence of an entire episode, and the emotional conflict between Lloyd and Garmadon is the main focus of season 2, so the two scenes we got here could have been put there.