Charlie Finn

Castle and Beckett investigate the case of a rich teenager found dead of a gunshot wound in a boat in Central Park lake; Castle becomes more involved in Alexis' life and make sure she is on the right track.

Al Capone gets destroyed by an unlikely enemy, prairie lawyer Abraham Lincoln gets a huge break, and the police go to war with protestors during the Haymarket Riot. Guest starring Ike Barinholtz, Joe Lo Truglio, Matt Besser.

Dana is extremely proud when her brother gets two sacks in a football game. She becomes determined to show others how he did it. Jeremy is nervous about firing Corbin Davis, a cousin of JJ's who is screwing up simple assignments. Jeremy gives him a pep talk and Corbin tells him, that he doesn't take sides when JJ talks bad about this show. Because of a drug scandal involving football players erupts, Casey travels to Ohio to find out the names, Tina fills in. When the names are uncovered, one hits close to home for Dana... literally... her brother.