"Beyond the Wilds" was pretty cool. The gang's finally back together (though they pretty promptly split up again) and they're finally starting to get their mojo back. And other fun stuff too. "I'm going to poke it with a stick." "No! Why would you do that?"
I love it that Korra needed Zaheer to help her restore her balance. It reinforces my belief about the theme of the season. Toph told Korra that her enemies had positive goals pursued through negative means. Now, Korra's confronted Zaheer, brought him some humility about the consequences of his actions, and found some level of peace with him, working together against a common threat. I do hope this is leading to Korra convincing Kuvira to see reason, bringing her back into balance.
In fact, that's kind of the theme throughout here, isn't it? It's not just Korra and Zaheer who look beyond their differences to cooperate, but Opal and Bolin, as well as Asami and Varrick. Even the Jon Heder slacker Airbender guy has found some balance.
And finally Firelord Izumi is named and gets to speak. She's voiced by April Stewart, who also plays Raava. And she's pretty determinedly trying to renounce her ancestors' history as warmongers and conquerors -- a parallel to Japan, the main template for the Fire Nation, although a few decades ahead of the 1920s parallels we mostly see in the series.