Extremists around the globe are waging jihad against Christians and slaughtering them at an alarming rate. When a small church group visits the Valley of Elah, the legendary site of David and Goliath, they are singled out and killed by extremists. One extremist eludes capture by Israeli authorities and makes it back to America, where he plots an even more audacious act.

Zoe and Zach Voss are twelve-year-old twins who must decide what it means to be a Jesus follower when extremism comes to America. Do the twins fight back? Do they cower and accept the inevitable? Or is there another...