In a distant future, a 12-year-old girl named Pelangi becomes the first human born on Mars and is left alone in the vast, barren landscape after the human colony departs. She embarks on an extraordinary journey alongside a group of malfunctioning robots. Together, they search for a magical mineral with the power to purify Earth's water, offering hope for a dying planet. As they overcome numerous obstacles, Pelangi and her robotic companions discover the true meaning of collaboration, friendship, and the potential for a brighter future.