American destroyers on patrol.
U.S.A. Destroyer patrol. Ships are of the '1000 tonner' group of five similar classes.
Location of events unknown / unclear.
MS the big ship moving by to left; with smoke coming out of its 4 smokestacks.
Great CU of smokestack looking huge; with masses of dark smoke pouring out.
CU stern; looking back at white water; with dark parts of ship in foreground.