Finn Blackstone is in trouble. A mission to find out the truth about her mysteriously absent father has morphed into a perilous game of cat and mouse. Now Finn and her friends must navigate a terrifying futuristic landscape filled with machines intent on the group's annihilation.

As Finn struggles against external forces, she faces an imminent threat as she grapples with her alter ego, Infinity. By accessing her memories, Finn catches a glimpse of Infinity's capabilities and feels a growing sense of horror at her past. But the more Finn and Infinity interact, the more the game shifts under their feet. In a world where it's hard to tell your friends from your enemies, Finn's past rears its ugly head to trip her up in unthinkable ways.

Finn must summon every ounce of strength she has to overpower her adversaries in a bone-rattling roller-coaster ride hurtling her toward an unknown future.