अपनी भाषा में प्लॉट जोड़ेंA new World War 2 destroyer fails its sea trials so it is assigned to mail runs, but the crew ends up having to engage Japanese planes and a submarine anyway.A new World War 2 destroyer fails its sea trials so it is assigned to mail runs, but the crew ends up having to engage Japanese planes and a submarine anyway.A new World War 2 destroyer fails its sea trials so it is assigned to mail runs, but the crew ends up having to engage Japanese planes and a submarine anyway.