"King Ghidorah invades a world that has never known monsters. The world’s military and scientists struggle to find a way to stop him. The only option may be the unthinkable…"
SPOILER WARNING: This section may contain major plot and/or ending details. Proceed at your own discretion.
Two weeks after King Ghidorah emerged from Dr. Talbert's lab in Cambridge, Massachusetts, the eastern United States has been completely devastated, with the cities of Boston, New York, Philadelphia, and Washington D.C. having already fallen and all efforts by the U.S. military, NATO, and the United Nations having failed. A general is interviewed on a news program, where he expresses his belief that there is no way to stop King Ghidorah and that the end times have come. Dr. Talbert is viewing the program from a prison cell, and turns it off once the general begins to rant about how humanity is doomed. A guard enters Talbert's cell and escorts him to an office, where Ms. Yamada is talking to another general. The general informs the two of them that the government has developed a desperate plan to stop King Ghidorah. The interdimensional portal has been rebuilt on a much larger scale, and Talbert and Ms. Yamada are to be sent back into the alternate dimension to find something to stop King Ghidorah. The two are airlifted to the new portal, where Dr. Talbert encounters his former assistant, Ridley, who has been tasked with rebuilding the portal. Talbert tells Ridley to close the portal if anything worse than King Ghidorah comes through, to which she readily agrees. Talbert and Yamada are then assigned to a team of soldiers, led by a soldier named Weinstein. The portal is activated, and the team goes through. On the other side, they see Godzilla roaming through the city. Talbert runs into the street, right in front of an armored vehicle. Drayer, the soldier Talbert and Ms. Yamada had met in this dimension before, exits and discusses the situation. Talbert asks to borrow some of their technology to stop King Ghidorah, but Drayer says their technology was useless against King Ghidorah, and only Godzilla could stop him. Talbert and Yamada enter an armored vehicle and activate the siren, causing Godzilla to give chase. After dodging Godzilla's atomic breath, the vehicle passes through the portal. A few seconds later, Godzilla comes through the portal as well. Ridley asks what they will do now, and Ms. Yamada answers that they will make Godzilla fight King Ghidorah. Talbert then remarks that he has a bad feeling about this plan.