Marking the first joint screen venture actually filmed by an American and Japanese company in the US, None but the Brave manages a high level of interest via its unusual premise and action-adventure backdrop.
Frank Sinatra, who also stars with Clint Walker and produces, makes his directorial bow and is responsible for some good effects in maintaining a suspenseful pace. The compact and mostly tenseful screenplay tells its story [by Kikumaru Okuda] through the eyes of a Japanese lieutenant, commanding a small detachment of troops forgotten on an uncharted South Pacific island where an American plane carrying US Marines crashlands.
A truce is arranged by the Japanese commander and Walker, the American pilot and senior officer, after Sinatra, as a pharmacist’s mate, amputates the leg of one of the Japanese soldiers wounded in a skirmish with the Americans. Americans’ radio is believed destroyed in the crash, and with no means of communication for the Japanese it seems that both sides are destined to sweat out the war on the island.
Sinatra appears only intermittently, his character only important in the operation scene which he enacts dramatically.