​From IDW Publishing and Boom! Studios, two titanic powers collide in a cross-company collaboration event you never expected . . . but makes complete sense!
  
Godzilla battles the Megazord . . . and no matter who wins, the world will be at great peril from the combined threat of the Xilien invaders and Rita Repulsa! And if a giant robot and a giant monster weren't cataclysmic enough, how about Gigan-a cybernetic space monster ready to fight them both?

​When Mars invades Earth, Godzilla surfaces from Tokyo Bay and is pulled into battle. Captured and taken by the Martians, Godzilla is forced to fight in a gladiatorial arena, where he faces his biggest challenge yet—KING GHIDORAH!