French sailors fire guns and drops bombs on German submarines.
World war one: "How the French deal with submarines".
Location of events unknown.
M/S of trawlers at sea. C/U man on a boat looking through telescope. M/S of top of submarine as it submerges. M/S of French sailors on deck loading and firing large gun. Glimpse of the U-boat submerging. L/S of boats firing guns. Aerial tracking shot from seaplane, we see small explosion in water. M/S of explosion in sea, biplane flies away in distance.
Modified WPA record.