Binky is a space cat, or so he thinks. In fact, he is a domestic cat who has never left his home "space station". He plans to go into outer space (outside), explore unknown worlds (the yard), and fight aliens (insects). Binky starts building a rocket and preparing for a galactic expedition. And just as he's about to take off with his co-pilot Ted (a toy mouse), Binky realises that he's forgotten something important - and it's not a zero-gravity cat litter box...