For over a year, Sara Morrison has been living a life she never dreamed possible. Rift jumping across parallel dimensions with her husband Michael, who is on a quest to battle the Rage, and their adopted son Toby, who possesses superpowers of his own, Sara has experienced wonders beyond belief. But she can't help but feel inferior to Michael as he saves the day time and again, and Sara longs for the chance to shine on her own.

When Michael and Sara encounter a cosmic storm that is shattering the worlds within the multiverse, Sara begins to uncover devastating truths about her past, her foretold future, and her connection to the reality-devouring storm. In order to overcome her own frightful fate, Sara will have to make a harrowing journey across the worlds and into the very heart of hell itself, before the multiverse falls to total darkness and her family is lost forever.