Ambush is a 1988 Filipino action film directed by Francis 'Jun' Posadas and written by Jerry O. Tirazona. It stars Ronnie Ricketts, Dick Israel, Sonny Parsons, E.R. Ejercito, Leo Lazaro, Bobby Zshornack, and Beverly Vergel. The film depicts an armed struggle between the New People's Army's Sparrow Unit and the Armed Forces of the Philippines.
In 1985, jeepney driver Ulysses "Boboy" Alega loses his vehicle just as he needed money to pay his rent and buy medications for his child. After he accidentally shoots and kills a person during a fight, Boboy is then imprisoned and tortured by the police. With his release from prison, Boboy eventually joins a group involved in arms smuggling, and after some time its members come to consider him as their leader.