Baixo Astral, an evil spirit who lives in the sewers, and whose mission is to bring unhappiness to the world, sees Xuxa on TV asking children to fight for a better world. Threatened by those words, he declares war on her and devises a plan: helped by his allies Titica and Morcegão, he kidnaps Xuxo, her dog. Helped by Xixa (a gypsy caterpillar) and Rafa, a rebel teenager, Xuxa goes on a mission to get her dog back and save the world from Baixo Astral.
Maria Auxiliadora is a 24 year-old woman very poor, that she lives Joana, her 7 year-old daughter close to. Needing go look for the result of Joana's exam in the hospital, Maria asks the priest of the local church that takes care of her to return. In spite of Joana's insistence to go with the mother Maria insists that she is with the priest, because she distrusts that her daughter suffers of a serious disease. To entertain the girl while it awaits the mother's return, the priest decides to tell her a mother's history that dedicated her life to the son: Mary, mother of Jesus Christ.
