Ronnie Smart, son of Billy, tries to catch stray whales in River Thames for his marine zoo.
Title reads: "There she blows!"
Whale hunt - school of whales in River Thames, Essex.
L/S Thames near Tilbury. L/S boat coming down river, in the foreground the fins of school of pilot whales can be seen. Various shots group of whales who have swum up Thames.
Various shots boat, which intends to catch one of the whales, coming towards the school. C/U whales. The boat moves in amongst the school. L/S marine expert John Sadler astride a boom holding his lasso ready. C/U ditto. Various shots group of whales in front of boat as Sadler tries to catch a whale but misses. C/U Ronnie Smart looking on from another boat. Sadler tries to catch another whale but misses again. C/U group of three whales diving. Various shots large group of whales.
Ronnie Smart, son of circus owner Billy Smart, is trying to catch one of the whales for his marine zoo. According to narrator Port of London officials stop the whale hunt as once in the Thames the whales are property of the crown.