Earth's Mightiest Heroes battle the Children of the Atom in a crossover so huge it calls for Marvel's biggest ever Omnibus! Get the whole story of the Phoenix Force's return to Earth, an event that kicks off an all-out war between the Avengers and the X-Men! The X-Men see the Phoenix as mutantkind's salvation, and the Avengers consider it a deadly danger. But what happens when five of the X-Men are transformed by the Phoenix. and begin to change the world? Collecting: Avengers vs. X-Men (2012) 0-12; Point One (2011) 1 (AVX story); AVX: Vs. (2012) 1-6; Avengers vs. X-Men: Infinite (2012) 1, 6, 10; Avengers Academy (2010) 29-33; Secret Avengers (2010) 26-28; Avengers (2010) 25-30; New Avengers (2010) 24-30; X-Men Legacy (2008) 266-270; Wolverine & the X-Men (2011) 9-16, 18; AVX: Consequences (2012) 1-5; Uncanny X-Men (2011) 11-20; A-Babies vs. X-Babies (2012) 1.