The magical world has always been vast. Even with all of the world's fairy tales and myths, they do not know everything about the mystical realm. Such as the first line of defense. Guardians are mystical beings who use powerful artifacts to defend the magical world from any threats against it. Be it mortal or magical. Leo Frost is one such guardian, even though he is only a teenager. But threats against his world are not going to wait for him to grow up. When the call comes, the young guardian answers along with a few others. Leo may be new to working with others, but he will learn it is best to work with others when fighting against a threat to their world.