Deep in a cult's mission to bring about the end of the world and under the careful supervision of a twisted spirit, Cyrus - by all outward appearances a teenage boy but harboring the power to cause natural disasters across the world - is kind of busy. Then a girl from his past, dreams of which have been plaguing him for years, re-enters his life.
Tuesday is the yin to Cyrus's yang, full of life and a reminder of the innate goodness humanity has to offer. Inexplicably the two are drawn to each other; every moment she spends near him, however, her soul loses some of its brightness. Tuesday doesn't seem to mind and one by one the dominos begin to fall. The world is in danger of ending, and she is only growing closer to helping him set it ablaze.