When Carter Kane left on a simple retrieval mission, he didn't expect it to go horribly wrong. Nor did he expect to meet a son of Poseidon and learn about a whole other world of monsters and gods he never knew existed. What he DOES know, is that someone's trying to destroy the world. Again. And it's up to him, Sadie, and his new friends to stop it. Just another day for the Kanes.