Summary

Hot off their successful mission in THE MOUSE WATCH UNDERWATER, Bernie and Jarvis are tapped to join the most important mission yet- one that will take them into outer space! The task? To take the Milk Saucer energy source they recovered from Cat-Lantis and connect it to a satellite that's currently circling the earth in order to halt the effects of global warming, and basically save the world. It's a huge honor to be chosen for this dangerous and historic mission. There's just one problem- Bernie is terrified of outer space.

Luckily, Bernie and Jarvis will be training with one of the most famous Astro-Rodents of all time, a brave hamster by the name of Commander Sleekwhisker. As Sleek takes them through the mission and teaches them all about their ship, the U.S.S. Mozzerella, Bernie starts to think everything will be fine. But once they're launched into space and far from Gadget Hackwrench and everyone they know and love, a huge betrayal is revealed and Bernie and Jarvis find themselves trapped by members of the nefarious R.A.T.S-on the moon! Bernie might have been getting used to the idea of being in space for a few days-but not forever.

Now it's up to Bernie and Jarvis to break out of lunar prison and stop the R.A.T.S., who are launching a secret army of rodent robots from their lunar base. With the help of the most adorable alien mouse ever, they just might make it back to earth in time to save the world from certain destruction.