Speed boat competition on the River Thames.
Title missing, according to the original issue sheet it should read: "FOR THE DUKE OF YORK'S TROPHY. Eliminating trials to find Britain's speediest team for International Motor Boat Race".
L/S of two motor boats whizzing up the River Thames, several barges chugs slowly along in the background. Panning L/S follows a boat as it speeds past. Panning M/S follows another boat, there are large crowds watching from the banks. L/S of a boat flying a striped flag from the back, it curves around the river and drives back on itself. Similar shot of another boat flying the Union Jack. More shots of other boats doing massive U-turns around a marker dinghy. Panning shot following the 'K 9' speed boat, taken looking over the heads of a crowd. Similar shot following a boat flying the French flag. L/S follows a speed boats as it zooms past a steam barge. More panning shots of motor boats racing around the river, mostly the same as before.