The kaiju, Irugo, breaks through the ground and surfaces. The gases exhaled from its mouth are poisoning the human body. SKaRD is ordered by CP to halt all investigation on Irugo and to standby until further orders. Emi thinks this could be the Third Wave, so she proceeds with her investigation involving the Test Facility 66. Meanwhile, the GGF sets out on a mission to cut off Irugo with a self-propelled laser cannon.