Kellie Delaney loves her widowed brother and treats his son as if she gave birth to the lad. The two male Delaneys are everything to Kellie until the police inform her that her two beloved relatives died in a car crash in Wales. Wrecking her already shattered psyche, she learns the collision was deliberate to eliminate Connor, who worked undercover.
Kellie obsesses over learning why her brother was marked for death. She learns of a Tom Whelan of Ireland though she cannot see his connection to her sibling, but assumes he is probably the killer. When Kellie meets Tom, she realizes he is not what she expected as he is a caring person that she is half in love with even though he is married. When his wife leaves prison, Tom's IRA past surfaces placing Kellie, the woman he now loves, in peril, especially since she hides her agenda from everyone.