|The Fall of the Castle of Lions|
|Air date||June 10, 2016|
|Written by||Tim Hedrick|
|Directed by||Steve In Chang Ahn|
The team and local Arusians celebrate Voltron's victory in the castle, at this time Allura asks her mice friends what they've since learned about the new Paladins. She reacts in surprise when they mention something about Pidge. Pidge then reveals his intentions to leave the team and search for his missing father and brother. As they try to convince Pidge to stay, Haxus, one of Sendak's soldiers, is able to sneak a bomb drone into the castle, causing it to destroy the crystal that powers the entire castle and severely injure Lance in the process.
Coran and Hunk leave to acquire a new crystal. Meanwhile it's discovered that Galra are attacking the local Arusian village. Allura and Keith rush to the village to help while Shiro and Pidge remain at the castle with Lance.
Unfortunately, Sendak soon attacks the castle, overpowering Shiro before plugging a Galran crystal into the castle's core, while Keith and Allura learn the attack on the Arusian village being a distraction. However, Pidge evades capture and with Allura's guidance is able to sabotage the Galra's efforts to launch the Castle.
Meanwhile, Hunk and Coran arrive at a nearby Balmera, a large petrified creature the size of a planet from which the Alteans acquire crystals. However, they discover that it has been taken over by the Galra and crash in the subterranean mines.
“Hey, what do you think the chances are of us landing on a nacho planet?”
“Well, there’s only one planet with Varadero Beach, pizza shack looking over the water, and the garlic knots, and...my mom’s hugs...”
—Hunk and Lance
"I like peanut butter. And I like peanut butter cookies. But I hate peanuts. They're so dry! Also, I sweat a lot. I mean, in general. Unrelated to the peanuts."
—Pidge's "confession" to Allura