Since no one ever trained the Screaming Death, Aron asked Danny to find a way in the past and find that dragon. Since Stoick still doesn't trust her dragon, she and Danny brought him back to the present and kept him hidden in the Ghost Zone. Will Stoick trust her dragon? Will others in the present find out about this dragon?

After King Pariah Dark and King Sombra were defeated by Danny Phantom and the Main Six, they did not know that they weren't gone forever...