With the help of his little sister Peggy, Henry video documents the peculiarities of his three strange pets - especially his Quonkka, Basil, a rare Australian marsupial, who likes eating pumpkins. Like a proud dog owner, Henry explains about the Quonkkas shyness, its clumsiness and especially how hard it is to train an animal the size of a house. Luckily Henry is there to pick up the pieces and look after the clumsy Quonkka affectionately known as Basil.