Aliens from another planet launch an invasion of Earth, but their initial ship is destroyed by Gamera, a giant flying turtle. The aliens regroup and capture two Boy Scouts, using them as bait to lure Gamera away from attacking their second ship. They implant a remote control device in Gamera's neck, exploiting the monster to wreak havoc on Tokyo. However, the boys devise a plan to disrupt the device, causing Gamera to malfunction and destroy the alien ship. The turtle then faces off against Viras, a giant squid-like alien leader, in a battle to save the city.
Gamera vs. Viras
In this thrilling adventure, a group of evil aliens cast a spell on Gamera, a heroic flying turtle, forcing him to join their side. However, two brave children intervene, breaking the spell and freeing Gamera from the aliens' control. With his newfound freedom, Gamera returns to battle the a...