An evil business executive is releasing dangerous toxins and the Barbarian Brothers set out to stop his evil work.

Two men and a woman, all friends and martial arts experts, visit Hong Kong, where they grew up. When the woman disappears, the men find out that she has been kidnapped by white slavers, and find themselves battling a gang of kung-fu killers in an attempt to rescue their friend.

When a cryptic note is passed to young Bert Hale by a stranger, he and his three friends inadvertently hold the key to unravelling the sinister plot to assassinate a Russian premier visiting Los Angeles.

A serpent, created by radioactivity, threatens a Spanish coastal town.

Anthony is in the Phillipines visiting his father. He inadvertently interferes with the affairs of local gangster Quino, who also happens to be a champion Karate fighter. After embarrassing Quino near a local tournament, Anthony is beaten up and left for dead. An old monk nurses Anthony back to health and teaches him the ways of martial arts so he may go back and fight Quino again.