Fifteen-year-old Keith Roberts’s life has spiraled into an abyss since his father, a Navy Seal, disappeared three years ago, along with Natalie Hill’s parents; scientists, in search of wormholes in the Bermuda Triangle. Natalie’s brother, Logan, is a physicist bent on finding them and bringing them home. While Logan is running an errand, Natalie accidentally triggers a wormhole that sends her back to ancient Greece. Keith bungles a rescue attempt and is also transported to her location. Together they must find a way home despite all odds in their dimension, and all others, against them.