Old Tom has decided he's due for an adventure.and a break from his fussy but affectionate owner, Angela Throgmorton. But the earth is to small for this fat cat . Old Tom decides that MARS will be his destination! And why not the Martians will love him, and probably make him king . and then he could eat EVERYTHING he wants! But it won't be smooth space travel for this feline there'll be a hilarious bump or two on his travel through the Milky Way!