"Ever since Mark Grayson got superpowers, life has never been the same. As Invincible, he's fought the universe's most dangerous villains, graduated high school, got a girlfriend (two of them!) ... and his father, the world's greatest superhero Omni-Man, revealed himself to be an alien conqueror bent on taking over Earth. Since then, Invincible's been working for the Global Defense Agency, fighting their fights and saving the world in their name. Until now. Invincible can no longer follow their orders unquestioned. Now he finds himself up against the very organization he's been working for! And war looms on the horizon ..."--Page 4 of cover