About this episode
In this thrilling series finale, Mars and his friends finally learn the shocking truth and face a choice that will affect the fate of Earth. This Peabody Award-winning serial mystery is beloved by families and classrooms all over the world. For more great shows, visit GZMshows.com . See Privacy Policy at https://art19.com/privacy and California Privacy Notice at https://art19.com/privacy#do-not-sell-my-info .