A visit from African explorer Uncle Neville prompts William into giving a lecture on 'Interestin' Animals' but with only a dead mouse as a prop he finds himself woefully short of creatures to illustrate his talk. Until sister Ethel's rival boy-friends George and Hector both bring parrots to cheer her up when she has suspected measles. Finding the birds left in the garden lead William to believe that a well-wisher has brought them for his talk but when the boys want their gifts back they find that William drives a very hard bargain.
—don @ minifie-1