As the Chitauri hordes poured through the portal in the sky above New York, and the Leviathan beasts unfurled their enormous forms,
Perseus stood atop Stark Tower, raised the Nemesis Warglaive in his hand, and let out a thunderous battle cry: "For the Emperor!"
The vast, terrifying psychic energy drawn from the Warp instantly spread across the skies above Manhattan at Perseus's command.
The illusory energy condensed into reality, turning into a storm of lightning before Thor's astonished eyes and instantly wiping out the Chitauri vanguard.
This is the story of a Grey Knight from the Warhammer 40K universe transmigrating into the Marvel Cinematic Universe.