A lawyer's family is murdered by drug smugglers, and he is beaten and left for dead, but survives although in a coma. When he awakes he only has a partial memory of what happened. In order to find out the real story, he trains with a karate master and becomes a mysterious avenger known as "The Karate Man".

Terrorists from all countries are to be reunited in order to join forces against their governments. The USA army notice it. A group of assassins, waiting in jail to be executed by firing squad get the chance to be exonerated if they participate in the secret mission of killing the terrorists. But they have to train under the strict military style of Sergeant Ransom.

A security guard falls for a famous TV actress he is hired to protect while dealing with mobsters who want his hide for some sour business deal.