S3 E10: The End
Jul 23, 2021•50 min•Season 3Ep. 10
Episode description
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.
Learn more about your ad choices. Visit megaphone.fm/adchoices