When a global cheese shortage threatens the entire rodent community, a brave group of rats come to one decision: if there's no cheese to be found on the Earth, then it's time to look off the Earth. Lenny Duddleswell has always dreamed of the stars, and when he catches a glimpse of glorious space travel, he's willing to defy all odds to win the girl of his dreams and take his place as one of the first ever "rats in space". And save the rat and mouse population once and for all.—Jason Cook