S3 E7: Return of the Martian

Mars winds up on familiar terrain, and in the middle of an interplanetary crisis. Can an old nemesis help him and his friends save the day? This Peabody Award-winning serial mystery is beloved by families and classrooms all over the world. For more great shows, visit GZMshows.com. Learn more about your ad choices. Visit megaphone.fm/adchoices