A sci-fi adventure, Parallels follows the lives of estranged brother and sister, Ronan and Beatrix, who are reunited when their father mysteriously disappears. Their neurotic neighbor Harold tags along on their search for their missing father, which leads them to a building that they accidentally discover is a portal to parallel Earths. On their travels, they are joined by Polly, a seasoned traveler, who teaches them the ins and outs of jumping from one Earth to another. Ronan and Beatrix ultimately reconnect as they uncover the dark truths behind their family’s broken history.