When the Backyardigans receive a strange signal originating from Mars, Uniqua, Pablo and Austin blast off to investigate. They're backed up by Tyrone and Tasha, who remain on Earth to assist at Mission Control. The Backyardigans leave prepared for anything, but encounter some surprises along the way. They don't give up, however, and eventually make a surprising discovery regarding the source of the signal.
Elenco: Jonah Bobo , Naelee Rae , Jamia Simone Nash , Sean Curley , LaShawn Tináh Jefferies , Kristin Klabunde , Chris Grant , Jr. , Jordan Coleman , Reginald Davis , Jr. , Gianna Bruzesse , Avion Baker , Jake Goldberg , Tyrel Jackson Williams , Gabriella Malek .