The disguised Lucha libre wrestler known as "Green Ghost" works as a car salesperson named Charlie in a border town in Texas. Charlie learns he has superhuman abilities when unknown attackers show up looking for an extraterrestrial emerald. Charlie is informed that, together with his boyhood buddy Marco and Marco's sister Karina, they are a secret warrior "triad of light" under the direction of La Nana as he trains to fight from the unusual Master Gin. They have been chosen to stand together in defense of humanity against Drake, the Mayan apocalypse's incarnation.