Fitch, Washington, Stone and Sanchez delve into the boxing world to investigate a woman's death. Her fiancé is preparing for a match against her ex-boyfriend and she was hiding a secret that could have thrown the fight. Longford and Mahajan are forced to face some tough ethical issues if they are to bring a resolution to the cold case they are re-examining. It seems that the victim led two lives, one with his wife and daughter and one with his married lover.