The White Paladin

Team Voltron didn't know that there was an sixth lion. The sixth lion was the white lion and the lion is the heart of Voltron. They must find the white lion and it's paladin before Zarkon does. Allura heard stories about the white lion and it's paladin from her father before Zarkon destroyed Altea. King Alfor hidden the four lions but the red lion was captured and into Sendak's ship. The black lion stayed inside the castle, the blue lion was hidden inside the cave on Earth, the yellow lion was hidden underneath the ground on a planet, the green lion was hidden inside the vens and the white lion was hidden inside the hideout on a unknown planet. Allura told the Paladins about the white lion and it's paladin, she looked at Shiro and told him that she has found his mate on an unknown planet.