Fishermen use special sound equipment to detect the fish in the sea. Newlyn, Cornwall.
M/S of fishing boats in Newlyn harbour. M/S of man carrying sound equipment into cabin of the "Twilight". Various shots as the sound detector is passed over the side of the boat and planted underneath. M/S crew on deck making ready to cast off. M/S of boat making its way out of the harbour. C/U men working at nets. L/S as another boat passes, C/U nets in foreground. M/S of the "Twilight" passing with skipper Paul Humphrys at the wheel. Various shots of the boat. C/U as they lift the hatch covers. C/U Paul (?) on bridge. Various shots of the instrument registering fish below. M/S's as they throw out nets and put up lanterns in the dusk. L/S of nets strung out behind boat. M/S's of the men pulling nets in. C/U fisherman repairing net, camera pans to catch on deck. M/S boat steaming back into harbour.
Cataloguer's note: the crew include George Bazzek, Frank Dennis and Theodore Cornish.