As alien invaders plot to conquer the Earth, two Boy Scouts steal a mini-submarine and discover Gamera in their midst. Transported to the alien's spaceship, the Scouts are menaced by the evil inhabitants, including Viras, a squid-like monster that grows to colossal size to battle Gamera.
Lady Lorraine Lister, a financer of expensive experiments, has discovered a way to obtain pure diamonds by the means of a radiation device. She hires five renowned scientists to participate in additional experiments regarding this new contrivance. However, it soon happens that the device is stolen, and the scientists mysteriously disappear! Agent Dick Smart is called in by the CIA to track down the scientists and recover the device. With the help of incredible gadgets and lots of bravado, he manages to locate the source of an underground operation in Rio De Janeiro: an operation headed by a mysterious man with a speaking device fastened to his throat.
The handsome top agent Matt dies a tragic death in his bath tub - the women mourn about the loss. However it's just faked for his latest top-secret mission: He shall find Dr. Solaris, inventor of the Helium laser beam, powerful enough to destroy a whole continent. It seems Dr. Solaris has been kidnapped by a criminal organization. The trace leads to the Cote D'Azur.
The island paradise of San Felipe has undergone a revolution! The charismatic General Siqueiros has assumed control! Those assisting him though have an agenda far beyond a simple dictatorship of a inconsequential banana republic! They’re scheming to put the entire world at their mercy through the mad scientist Karlesten’s efforts to develop a deadly missile-carried gas! And only one man can stop him! Walter Ross, Agent 3S3! And he not only has a license to kill, but also a license to spank!
Gamera escapes from his rocket enclosure and makes his way back to Earth as a giant opal from New Guinea is brought back to Japan. The opal is discovered to have been an egg that births a new monster called Barugon. The creature attacks the city of Osaka by emitting a destructive rainbow ray from his back, along with a freezing spray capable of incapacitating Gamera.
Jonas Trapp falls in love with the beautiful Jessie, a wealthy girl out of his humble class. Against the wishes of her snobbish aunt, she marries him, later faking a pregnancy to win her aunt's consent. But Jonas tires of living off of his wife's family, and eventually deserts her to become a buffalo hunter. 11 years later, with his self-made fortune, he sets out to return home, only to be set upon by three sadistic marauders, who steal his money and leave him for dead. Rescued by a farmer who nurses him back to health, Jonas becomes consumed by the desire for revenge. As fate would have it, all three men live close to Jonas' former home. Matters quickly get worse when Jonas reunites with his wife, only to discover that she is now engaged to Renne.
Astronauts Glenn and Fuji investigate Planet X and encounter mysterious aliens known as the Xiliens, who ask Earth's people to help save their world from "Monster Zero". In exchange for borrowing Godzilla and Rodan, the Xiliens offer a cure for cancer. As Glenn investigates, he develops a romance with Miss Namikawa and uncovers the Xilien's true intentions.
CIA agent Jeff Larson is sent to investigate suspicious activities at a U.S. base located in southern Spain. He discovers the base is being heavily monitored by the KGB via hidden cameras and moles within the base, and he must find a way to ferret the traitors out whilst avoiding discovery of his investigation.
A trio of thrill-seeking go-go dancers kidnap a young girl and attempt to seduce an old rancher and his two sons out of their small fortune, but their scheme doesn't play out as intended.
In 1879, during the Anglo-Zulu War, man-of-the-people Lt. Chard and snooty Lt. Bromhead are in charge of defending the isolated and vastly outnumbered Natal outpost of Rorke's Drift from tribal hordes.
During World War II, the spoiled son of a wealthy businessman finds himself involved in the guerrilla movement fighting against the Japanese, and finds romance and adventure.