Commando Fury (1986)

Women prisoners are tortured, whipped, beaten and humiliated inside a WWII detention camp. The commander of the camp (Shou-Ping Tsui) and his aides (Yvonne Wang and Celia Kong) interrogate the prisoners looking for some important microfilm. Meanwhile, some of the prisoners hatch a plan to escape the camp.Even the trees attack the prisoners at one point.