The Martians come into Pretty Big City and accidentally break all the ornaments on the Pretty Big City tree. Since the holidays can't start without a decorated tree, the Mechas need to create new ornaments and fast./It's time for Zee and MacBarm's gift exchange, but the snowman scarecrow Zee made for MacBarm keeps blowing away! The Mechas need to help Zee build a scarecrow out of a new material - one that won't blow away from a rocket launch.