Nuclear physicist Mark Renfro will do anything to keep his daughter safe, including building a 'suitcase nuke' for the radical group that killed his wife. Imprisoned alone in a make–shift lab, Mark has all but given up hope of seeing his daughter again. Until his captors provide an assistant – the beautiful stepdaughter of the terrorist leader.

Erin Daniels has no plans to help anyone – including a gorgeous scientist. That is, until a time bomb is strapped around her neck. They have one week to finish...or Erin dies and Mark becomes Erin's only hope for survival. And she's his only hope for a future.