Cold Case is a drama about Lilly Rush, an enigmatic and highly effective detective on the Philadelphia Homicide Squad. Rush's instinctive understanding of the criminal mind and her singular passion for uncovering the truth makes her the perfect fit for investigating cold cases, yester-crimes that have remained unsolved - some only a few months old, others going back decades. Rush and her team use their wits to take on aging evidence and witnesses with buried secrets, uncovering fresh clues, digging into old wounds and doggedly pursuing the truth.