"On the eve of the first manned mission to Mars, Secret Agent Jack Stalwart learns that the mission's chief rocket engineer has disappeared. When he finds out that engineer is his father, Jack vows the kidnapper is going to live to regret it. Can Jack keep his cool to save the day?..."p.[4] of cover.

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.

Mars likes peace and quiet and is not happy when unexpected visitors show up, but slowly realizing he does not want to be alone, he reaches out to other planets and satellites while waiting patiently for human company.

After "traveling to Mars" in Roberto's homemade spaceship, Roberto and his father play a game of catch.

Young readers can join the Backyardigans as they search for buried treasure, blast off to outer space, and explore the Icy North in this collection of seven stories.