There's an assassin on the loose that appears to be hunting average middle aged Americans with abandon.

The clues left behind suggests terrorism but the victims appear to have no connection to anyone or any organization that could explain why they are being targeted.

This mystery has Jake Patrick and his team chasing shadows as they try to catch the elusive killer who seems to always be one step ahead of them.

The one thing they know for sure is the killings will continue until they solve this mystery and end the carnage once and for all.