After loosing a crew of civilian workers to a Japanese attack, Wedge Donnavan (John Wayne) a Construction Co. owner joins forces with Dennis O'Keef, a Navy Officer to convert civilian construction...

After loosing a crew of civilian workers to a Japanese attack, Wedge Donnavan (John Wayne) a Construction Co. owner joins forces with Dennis O'Keef, a Navy Officer to convert civilian construction workers into the fighting Seabees. Lots of action as both big boss and Navy officer fight for the heart of th same Lady Jurnalist and against the Japanese bent on taking the island John Wayne is converting into a halfway stop for the invasion of Japan.