The planet-burning cosmic firebird known as the Phoenix Force has returned -- and the Avengers are drawn into a globe-spanning battle for ultimate power! In the distant past of One Million B.C., learn the story of one young girl whose only crime was being born with red hair... and whose destiny would change human history forever! In the present, the Phoenix Force searches the globe for a new avatar -- and many of Marvel's most powerful heroes and villains are contenders! As the battle to wield the Phoenix grows ever bloodier and more desperate, Thor leads the Avengers in a fight to contain the Phoenix Force. But the quest is complicated by the Thunder God's mysterious connection to the cosmic firebird! Who will be the all-new Phoenix?! All will be transformed... but not all will survive!