I. Scenes onboard Royal Navy submarine.

II.Seeking and destroying enemy aircraft by ship launched missile system.

III. Royal Marine Commandos attack and successfully destroy an enemy radar system.

IV.Urgent supplies are ferried by helicopter to HMS Sheffield, moored off the coast of Gibraltar.

V. Half submerged submarine. A surface-to-air missile is fired.

VI. Onboard an unidentified Royal Navy ship at sea.

VII. HMS Sheffield approaches Gibraltar. Wrens begin their day [This segment finishes abruptly, possibly duplicate material from another production]

VIII. New recruits to the Royal Navy undergo their basic training at HMS Raleigh in Cornwall.

Compilation of short segments about life in the Royal Navy, presumably intended for use as a recruitment film, possibly as a visual aid in a lecture.

Notes

Title doesn't appear to be present on the film itself.