Voltron is a colossal robot formed by the unification of all five Voltron Lions. Created by King Alfor from the Quintessence-infused ore of a Trans-Reality Comet, it embodies a perfect blend of Altean science and mysticism.
After being dormant for ten thousand years, Voltron is reassembled following Shiro's return to Earth, a year after his capture by the Galra Empire. Shiro's arrival sets in motion a chain of events, bringing together Keith, Lance, Hunk, and Pidge. The group discovers the Blue Lion, which leads them to the Castle of Lions on the planet Arus. There, they awaken Princess Allura and Coran, the last living Alteans, who guide them in locating the remaining Lions. Once united, the Paladins form Voltron, reigniting the fight to defend the universe against Zarkon's empire.
By the time of the events in "The End is the Beginning," Voltron becomes permanently deformed due to the Lions being abandoned in space without pilots. This marks a significant turning point, underscoring the critical bond between the Paladins and their Lions in maintaining Voltron's full potential.