Tired of their hard life on Earth, where dogs chase them, winters are cold, and carrots scarce, three rabbit friends build a rocket ship and journey to Mars in hopes of finding a better life.

Sadie Sprocket is a girl with a big dream ... to go to Mars! No one has been to Mars (yet!), so of course that's where Sadie sets her sights. She learns everything she can about the planet and space, then assembles her crew of trusty stuffed animals. Together they build a rocket and prepare for the historic journey. And then finally ... blastoff!