An accident or an act of sabotage? What these strangers find on the other side of the travel gates is a crueler fate than they could have dreamed.

Sick of the small life imposed on her, sixteen year old Angharad is seeking escape. When she wakes up on the other side of the Gate what she gets instead is a tighter prison than she's ever known. With no way out and no way to find her mysterious jailer, she finds herself relying on the people trapped with her: Tsuyoshi, an angry Canadian art student, well-meaning Josephine, the secretive Dr Yeoh, and Jin, a child soldier. But not everyone is who they seem, and even Angharad lives a lie.

Tests from their mysterious overlord lead to new encounters and strange bedfellows. For Jin and Angharad, their quest to find the truth may risk everything.

And when things take a darker and more desperate turn, not everyone they know will survive.