When a murder victim is discovered on the bridge connecting El Paso and Juarez, detective Sonya Cross must work with her Mexican counterpart, Marco Ruiz, to catch a serial killer terrorizing both sides of the border. But their investigation will uncover shocking secrets and relentless danger that neither of them could possibly have imagined.

Set along the tumultuous Arizona-Mexico border, follows Miguel, a hardworking father and devoted husband who crosses the border illegally and is wrongfully accused of murdering the wife of a former sheriff. Miguel's pregnant wife lands in the hands of corrupt Mexican "Coyote" smugglers as she tries to help her husband, while the ex-lawman investigates his wife's death and unearths evidence that could destroy one family's future.