Erin Reagan (Bridget Moynahan) is one of the highest-ranking people in the New York Justice Department as a powerful assistant district attorney. But no matter how high she has gotten in the series, she has spent the entirety of it with a boss. She has always served at the pleasure of the district attorney, and there have been multiple people who have held the position. One of the people she has worked for is Robert McCoy, who stepped in as an interim in the 5th season of the series.
When Erin gets wind of an underground campaign to get dirt on high-powered New Yorkers, she steps in and does what any good Reagan does, and rectifies the situation. When she discovers that her boss, District Attorney Amanda Harris (Amy Morton), has been using one of her friends, a madam, to collect information on New Yorkers in key positions, Erin takes her down and creates an opening in the office. Harris’ replacement is none other than defense attorney Robert McCoy, who just happens to be dating Erin at the time.
Always the consummate professional, Erin breaks it off with him because she can’t date her boss. McCoy’s troubles didn’t end there, as he goes head-to-head with Frank Reagan (Tom Selleck) when he makes the proclamation that the District Attorney’s Office won’t be prosecuting marijuana charges. This puts Erin in a tough spot between her boss at the DA’s Office and her father at home.
