The Black Paladin

With Allura's capture, the Paladins are quick to mount a rescue mission. When they arrive, Zarkon activates a particle barrier, trapping them inside. Voltron is quick to destroy most of the Galran forces, but are forcibly separated somehow by Zarkon and Haggar. The Paladins scramble to rescue Allura while Shiro is suddenly ejected from the Black Lion. As he tries to get back to his lion, he encounters Haggar and is easily overwhelmed by her powers, only to be rescued by Allura and Hunk. Zarkon moves to claim the Black Lion, revealing himself as the original Black Paladin of Voltron, but Keith intercepts and battles him, against Coran's advice. Zarkon easily overpowers Keith's Red Lion with his mastery over the black bayard, being able to form a multitude of different weapons in an instant. Before Zarkon can kill Keith, Shiro rescues him with the Black Lion. The Castle-ship is unable to form a wormhole to escape, until suddenly one of Zarkon's commanders destroys the sentries guarding the barrier generator and shuts it down. As they escape through a wormhole, Haggar hits it with her lightning, causing the portal to become unstable. The lions are separated from the Castle-ship in the wormhole, each of them falling to parts unknown.