A lunar eclipse causes a violent moonquake and releases the Gravity Goliath. Launched off the moon by the force of the moonquake, it lands on the Earth in the Pacific Ocean. The Gravity Goliath, as Brock calls it, creates a giant whirlpool that imperils the Calico and its crew.
Responding to the crew's summoning, Godzilla battles the moon monster and ultimately hurls the creature back into space, where it is recaptured by the moon’s gravity.
- The Gravity Goliath can fire beams from all the craters on its body. These beams are strong enough to hold back other monsters.
- The Gravity Goliath can emit a beam from his entire body that will attracts objects to him.
- The Gravity Goliath can gain even more power from the moon.
- The Gravity Goliath is weakened if it is not exposed to the moon's reflective rays.