To Be Defeated

Keith has been thrown out of the red lion during a fight. Shiro takes the wounded lion back to the castle and team Voltron wormholes away, not knowing that they have left their fellow paladin on the planet. He is wounded, unconscious, and about to go through a drastic change. Prince Lotor finds the red paladin and takes him. What will Zargon do with the information he finds? How did Keith get to Earth? Why can't Keith remember anything? The answers will appear as the adventure continues