While Ryan struggles to find his missing wife, his friends have been tasked with an investigation of the Defense Intelligence Agency. An investigation that involves finding a covert agent operating inside the agency. For Ryan, his only clue is a is a picture of his RV crossing into Mexico from El Paso, Texas. How these two arbitrary events intersect into the lives of people, is like a pebble in a pond with the ripples spreading out affecting everything and everyone till the ripples lap up onto the shore. Retribution is the fourth book in the Ryan series with his first two books both being nominated for the CIPA EVVY award.