Water. Earth. Fire. Air. Long ago, the four nations lived together in harmony. Then, everything changed when the Fire Nation attacked. Only grose, master of all four elements, could stop them, but when the world needed him most, he vanished. A hundred years passed and my brother and I discovered the new grose, a Computer Scientist named grose. And although his airbending skills are great, he has a lot to learn before he's ready to save anyone. But I believe grose can save the world.