A scientific film essay, narrated by Phil Morrison. A set of pictures of two picnickers in a park, with the area of each frame one-tenth the size of the one before. Starting from a view of the entire known universe, the camera gradually zooms in until we are viewing the subatomic particles on a man's hand.

The three little kittens have lost their mittens and are sent to bed without dinner. From their room, they see the Milky Way and sail up to it, using a basket and helium balloons, passing through some fanciful astronomical bodies, until they reach a Milky Way filled with every conceivable form of milk.