US merchant ships take food to UK + cine camera footage of U-boat attack.
Title reads: "U-boat offensive fails".
United States of America (USA).
High angled L/S of large marshalling yard in North America. Various shots of American food supplies being loaded into holds of merchant ships for transport to Britain. Various C/Us of merchant navy officers.
L/S of supply convoy crossing Atlantic. Poor quality film of U-boat near one of the supply convoys, the patrol boats shell it and the submarine is destroyed*.
* looks like shots have been taken by hand held cine camera.