A super-intelligent dog, his clumsy yet enthusiastic boy sidekick, and a time machine ... through decades of syndicated reruns. Mr. Peabody was originally a backup segment on The Rocky and ...

The Guapo Brothers offer to give Peabody and Sherman their show back. But first, they'll have to capture Jesse James, Belle Starr and Genghis Khan. With the outlaws still on the loose, Peabody ...