American Ninja 4: The Annihilation

When four Delta Force commandos are captured by an elite Ninja force in an African forest, two top secret operatives (David Bradley and Dwayne Alexandre) are sent to free them. After taking refuge with an American Peace Corps nurse (Robin Stille), all are captured. Rescue lies in the hands of a retired ex-operative (Michael Dudikoff) who needs some persuasion - until the sinister enemy's ultimate scheme of nuclear terrorism against an American target comes to light. It will take everything he's got when a feared, indestructible Super Ninja is unleashed for an ultimate showdown. (official distributor synopsis)