When Captain Craig discovers the body of one of his lieutenants who had been tortured and executed by the Japanese, he goes on a one-man army kill crazy rampage of revenge in the jungle with his Reising gun (that jams) and his M1911 pistol.

The troubled Craig meets a knowledgeable and sympathetic Flight Officer, Ellen Foster of the Women's Auxiliary Australian Air Force who has two brothers serving in North Africa.

In a fictional assault that a map identifies as Bougainville, Craig's Paramarines jump behind Japanese lines to relieve pressure on a beachhead where Lockhart's Raiders and other Marines have landed.

Producer Robert Fellows had previously filmed Bombardier and The Iron Major with RKO's contract star Pat O'Brien.

[3] Shortly after filming his part, Ryan enlisted in the United States Marine Corps in January 1944 serving as a Drill Instructor at Camp Pendleton, later being discharged in November 1945 as a Private First Class.

[4] The film was made at the Marine base at Camp Elliott, near San Diego, with Captain Clay Boyd as the technical advisor.