"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! Sadie and her team make it to Mars, but what will they encounter when they leave the ship? And will they travel...