The bestselling CatStronauts series continues in the fourth book with a purr-plexing problem as the CatStronauts stage an off-the-books robot rescue to save Cat-Stro-Bot!

Cat-Stro-Bot has been with the CatStronauts through it all. But now hes stranded on Jupiters coldest moon after a mission gone wrongand his best friend/creator Blanket isnt about to leave him behind. When CATSUP refuses Blankets rescue mission request, he creates robo-stand-ins for the team so they can sneak off into space. Soon, the rest of the CatStronauts, Major Meowser, Pom Pom and Waffles, are off on their longest journey ever with experimental new technology. The robot rescue is afoot!

In this full-color graphic novel, author/illustrator Drew Brockington takes the CatStronauts to new heights, adding in mounds of robot glitches, wonky cover-ups, and fish jokes by the ton!