The Last Grenade (1970)
The Last Grenade plot
"Breaking into Red China someone has to end the madness..."
Two soldiers, Harry Grigsby and Kip Thompson, used to be best friends when they fought side by side in the Congo. But now Kip has changed sides and Grigsby won't forgive his betrayal. Grigsby cannot accept Thompson turning against his troops. While recovering from tuberculosis in London, Grigsby is assigned a new mission which he gladly accepts: to take out Thompson. The latter now resides in Hong Kong and is causing tensions with neighboring China by provoking incidents at the border.