Me, a dragon slayer?! [on hold going through editing]

This is about four teens who have the power to defeat dragons. They have the power of the four elements fire, earth, wind, and water. They have been told that their will be a dragon demon to awaken is a couple of months. But all four of the elements will have to be combined to be able to defeat the evil dragon zerf. Will these teens find each other in time or will the world come to an end.