Microsoft and 343 Studios have now released the opening cinematic from "Halo 5: Guardians," the highly anticipated next entry in Microsoft's biggest franchise. "Castle" actor Nathan Fillion and future Luke Cage star Mike Colter lend their voices and likenesses to characters in the action-packed clip. Launching on Xbox One on October 27th, 'Guardians' continues the story of the Master Chief, and introduces the key new character of Spartan Locke first seen in the live action series "Halo: Nightfall".