Bat21 is a 1988 war film directed by Peter Markle, and adapted from the book by William C.. Anderson, novelist and retired United States Air Force colonel. Note Set during the Vietnam War, the film is a dramatization based upon the rescue of a U.S. signals intelligence expert shot down behind enemy lines in Vietnam. The film stars Gene Hackman and Danny Glover with Jerry Reed, David Marshall Grant, Clayton Rohner, Erich Anderson and Joe Dorsey in supporting roles.
While still coming down by parachute, Hambleton makes radio contact with Captain Bartholomew Birddog Clark Danny Glover, the pilot of a Cessna O2 Skymaster, flying a Forward Air Control mission near where the EB66 was destroyed. Birddog becomes Hambletons link to rescue.Hambleton, an expert on electronic weapons systems, is known to the North Vietnamese, who begin an allout search, attempting to capture him. An effort by Hambleton to get help from Vietnamese villagers is not successful, meanwhile, American forces begin an allout attempt to rescue him. ........
Source: Wikipedia