Un demonio a mi servicio

Ranger Hank raised Max, a hellhorse, with one rule: never remove his bridle. Max saved Hank from lions, but Hank's gambler son Ethan stole him. Ethan tore off the bridle—Max became a flaming warhorse and burned Ethan alive. The FBI recruited Hank and Max. Hank keeps the bridle. They now serve as special agents, protecting the world. Even a fierce beast can be a true guardian.