

The fear is quickly justified as a report comes in of Godzilla attacking an oil refinery and making his way toward the laboratory. In light of this discovery, it's feared that Godzilla might try to rescue the infant. The Baby Godzilla quickly forms a bond with Azusa, while Azusa tends to the baby by feeding it an apple. Upon the team's return to Japan, the egg eventually hatches to reveal a newborn Godzillasaurus, as opposed to a Pteranodon as speculated. The scientists then leave the island, egg in tow, though Kazuma notices a connection being established between the egg and biology researcher Azusa Gojo when the two of them glow red.

The mech besieges the Pteranodon couple, repelling the female and sending it into the ocean, while burning the male to death with a beam attack. The UN receives word of the two creatures and dispatches the upper half of Mechagodzilla to deal with them. Shortly after, the expedition team is attacked by a male and female Pteranodon pair. Later, an expedition is launched to Adonoa Island where a giant egg is uncovered, believed to be a remnant of prehistoric times. Elsewhere, G-Force member Kazuma Aoki gets himself into trouble as he uses his custom built Mini-Garuda to fly into fellow member Catherine Berger's bathroom while she bathes. The bird-like Garuda is also developed, a land-and-air dual robot with legs and large wings. The machine is given the ability to separate itself into two parts - an upper half and a lower half - which can merge together to form the powerful "Union Mechagodzilla" super-weapon. Inside, G-Force is busy reverse-engineering the body of Mecha-King Ghidorah, creating not just combat weapons but also a giant mechanical doppelganger of Godzilla. The United Nations Headquarters comes into view.
