When Chicago police officer Sharon Pogue (Jennifer Lopez) is pursuing a suspect, she nearly becomes the victim of a fatal ambush until a mysterious stranger, Catch (Jim Caviezel) intervenes and saves Sharon's life. Is it a stroke of luck? A twist of fate? Or just a concerned citizen who happened to pass by at the right time and wasn't afraid to get involved? Maybe, but Sharon and Catch have met once before. As the two fall in love, they discover the truth about each other and are forced to deal with the secrets from their past.