After Godzilla battles robotic insects, the team encounter their creator: Cameron Winter, a powerful technology mogul and an old rival of Nick's from college.

H.E.A.T. investigates the tropical island of Santa Marta in the wake of a devastating volcanic eruption. But what they find on the island is that, due to irradiated lava, a hideously mutated ecosystem has developed, including carnivorous plants and gigantic bees.

H.E.A.T. heads for Scotland after Dr. Hugh Trevor of the Pisces Marine Research Institute claims his facility was attacked by the Loch Ness Monster.

From their secret base on Isle del Diablo, the aliens assemble their forces; H.E.A.T. desperately fights to resist.

When Godzilla is accused of attacking New York, the military call in H.E.A.T. to help contain him. But Phillipe Roache has returned from France...with orders to terminate Godzilla.

Another new and dangerous mutant species appears on the scene, this time in the form of gigantic hummingbirds that attack planes flying over San Francisco. Worst of all, this mutant avian species is able to render themselves invisible via the hummingbird trait of flapping their wings faster than any other bird species in the world. As a result of their ability to cloak themselves so as to be invisible to the unaided eye, Godzilla is unable to see the creatures in order to attack them.