It has been a year since the Fourth Shinobi World War had ended and a new era of peace has dawn in the Shinobi World. Technological innovations from the Land of Waves are flooding the new Shinobi Union...but one of the older era's most persistent threats has decided to make a grand return to threaten everything...with Kakashi caught right in the middle!

Dr. Serizawa, Dr. Tatopolus, Zilla Jr. and Godzilla all face the might of the Breach Kaiju as Ford and his family try to survive. A new weapon is soon developed to aid the allied Kaiju...the Jaegar, which hopes to turn the tide against the Breach Kaiju to end the Apocalypse. G-Force and the Pacific Rim Defense Corps face this war together...