The evil King Zagro has designs on the beautiful Princess Sira. He wants to marry her so he can take over her kingdom and add it to his own. When Sira is kidnapped, Ursus leaves his farm to rescue her and to eventually lead a revolt against King Zagro.
A gang of teenage delinquents terrorize a small community by stealing cars and stripping them for parts, then selling the parts to a crooked junkyard owner. The police and an insurance company investigator set out to break up the gang.
Centuries ago in the Orient, the fiscal exactions on the people lead to a revolt against the usurper of the throne, and the empowerment of a new leader.
During the Mongol invasion of Poland, a conflict between Mongol Emperor Genghis Khan and his oldest son Ogotai ensues when the former aims for peace and the latter itches for war and conquest.
King Androcles of Thebes commands a ship in search of a threat to Greece, predicted by an atmospheric oracle. Hercules is part of the crew, but the strongman falls overboard in a thick fog. Washed ashore, he saves a young Ismene from Proteus, an evil, shape-shifting creature. Ismene takes Hercules to Atlantis, where he discovers that her mother, Queen Antinea, has captured Androcles. Hercules schemes to rescue him and thwart Antinea's dream of world conquest.
Astronomer Shinichi Tachibana has a secret identity as the superhero "Iron Sharp" and is well beloved by children. When they are attacked by a group of metallic aliens, Iron Sharp drives the aliens away. The resourceful Tachibana helps develop an electric barrier to block the aliens from coming to the Earth. After several losses by the aliens, they announce that they will invade the Earth, throwing the world into a state of panic.
An American sailor is shipwrecked on a South Seas island populated only by women. Trouble follows when he falls in love with a native girl who has been chosen as a sacrifice to the tribe's pagan god.
Mitchell is a rich American businessman whose son is kidnapped in England. Naturally, there's a huge ransom demand, but Scotland Yard tells Mitchell to butt out.
Maciste travels to Egypt, where he leads a revolt against an evil queen. In Son of Samson, Maciste (Mark Forrest) -- scion of the famed muscleman -- travels to the Egyptian city of Tanis to checkmate villainous Queen Smedes (Chelo Alonso), who's persecuting the citizenry.
During the Korean War, the lieutenant in charge of a Marine rifle platoon is killed in battle. Before he dies, he places the platoon's sergeant, who's black, in charge. The sergeant figures on having trouble with two men in his platoon: a private who has much more combat experience than he does, and a racist Southerner who doesn't like blacks in the first place and has no intention of taking orders from one.
A warrior returning home to his country must battle giant bats, three-headed dogs and a vicious dragon to save his wife, and his people, from the machinations of an evil ruler.