American Ninja 4: The Annihilation

American Ninja 4: The Annihilation follows a rescue mission that goes wrong. A Delta Force team is captured by a band of ninjas in the African highlands, and the men sent to free them, Sean Davidson and Carl Brackston, are taken prisoner as well. With the captors threatening to kill the hostages and strike at New York, the government turns to Joe Armstrong, a former agent who left the field behind years earlier. He joins the operation alongside Sean and Dr. Sarah to stop the terrorists and their leader, Mulgrew, before their plan can be carried out.

The film is a Cannon Group production directed by Cedric Sundstrom, who had previously made American Ninja 3: Blood Hunt. It is the fourth entry in the series, and it brings back Michael Dudikoff as Joe Armstrong, the star of the earlier installments, while David Bradley returns as Sean Davidson. James Booth plays Mulgrew, with Dwayne Alexandre, Ken Gampu and Robin Stille in supporting roles. David Geeves wrote the screenplay, and Ovidio G. Assonitis and Christopher Pearce produced.

Released in October 1990, the film runs 99 minutes. Audience response has been modest: on IMDb it holds a rating of 3.9 from more than five thousand votes, while on TMDB it sits at 5.3 from a much smaller number of votes, a gap that partly reflects the difference in how many people weighed in.