Voltron: Angels of the Elements

Three young angels at the Cloud, a part of heaven where young angels are taught about angel life and rules. Finding a well known angel Shiro, who seems to be more than just angel now. Shiro had apparently became Fallen after unknown reasons, it doesn't seem like the normal ways you become a Fallen running out of magic energy or by breaking the angel code. By fate it seems they run into yet another Fallen angel. Piecing the puzzle together they find an unknown magical element, then being sent into Limbo the area between Heaven and Hell. Where they find themselves on a large unknown floating island where they find a goddess. They soon realize they are apart of something big, as they work together to become the different worlds of Heaven, Earth, Limbo, and Hell's protectors and balance keepers. The team is faced against an army of demons as they try to save everything as they know it. They are the only hope, as they come together to form a ultimate being... Voltron.