The Walls of Hell, also known as Intramuros is a 1964 Philippine-American film directed by Eddie Romero and Gerardo de Leon and starring Jock Mahoney.

[1] It was produced by Hemisphere Pictures (owned by Eddie Romero, Irwin Pizor and Kane W. Lynn).

The United States artillery is bombing them continuously, and the Japanese are holding thousands of innocent Filipino citizens hostage.

An American reporter named Murray (Paul Edwards Jr.) arrives at the front where a guerrilla unit led by a Lt. Sorenson (Jock Mahoney) makes contact with a young Filipino guerilla named Nardo (Fernando Poe Jr.) who had escaped from Intramuros through a sewer tunnel.

Nardo tells Sorenson that his wife is among the prisoners and that the sewer system can be used to rescue the hostages.