Cover A First Printing. Worlds Collide: Part 1 of 6 - Written by Mark Waid. Art by Jesus Saiz. Cover by Alex Ross. Following the events of GENERATIONS comes the long-promised clash between the Avengers and the Champions! The countdown has started as the High Evolutionary, a twisted scientist determined to create a better world at all costs, sets the Earth on a collision course with destruction! The Avengers and the Champions are ready to meet this threat - but will their first cataclysmic clash deter them from Changing the World? PLUS: Includes 3 bonus MARVEL PRIMER PAGES!