Jen Kallis never forgot the night her father vanished into a strange, white light from inside her closet. Even though no one believed her, Jen knew what she'd seen and refused to accept that her dad had abandoned her and mom.
Ten years later, Jen, now 17, remains haunted by his disappearance when, without warning, her closet door bursts open and reveals a bright white light. Stepping through the light, she time travels to the year 2222 to a world far different from her own. Everything in Blue City is strange, with buildings that soar too high in the sky, hover cars that zoom on transparent blue streets, and robots that look just like humans.
When Jen is confronted by Asher, an attractive commander with a rebellious spirit who warns that her life is in danger, she convinces him to help her escape and find her father. Together they embark on a wild journey where she has to battle Asher's scary ex-girlfriend, Rogue, for his love, and Jen discovers that there's something far bigger than her quest to find her father: the fate of the world-past, present, and future-is in her hands.