Jane and Maura's friendship suffer following the shooting of Maura's biological father, gangster Paddy Doyle. Jane also finds herelf in the middle of an Internal Affair investigation. And her relationhip with Agent Dean is exposed. Maura finds out that her father said she died as a newborn on the day she was born August 7, 1976 and has a gravesite and marker with the name of Baby Maura Doyle on it.

This drama is adapted according to the best-selling crime novelist Tess Gerritsen 's novel of the same name "RIZZOLI & ISLES" . Boston female police officer Jane Rizzoli, indomitable character , played by Angie Harmon , Sasha Alexander, who plays intelligent, sharp , dressed and distinguished background female forensic Maura Isles. Two different personalities , but to establish good relations of cooperation to jointly fight against the notorious criminals in Boston . The play , Lorraine Bracco, who plays Jane 's strictly a strong mother , Lee Thompson Young plays Jane's new partner - Barry Frost police officer , Bruce McGill as experienced , very unhappy Frost Jane's former partner Vince Korsak police officers , Jordan Bridges, who plays Jane younger brother - Frankie Jr., a hope that one day can become a detective of the current patrol . Jane and Frankie Jr. gradually from the police siege of a gunshot wound in the second quarter , to recover. For Jane , compared to physical trauma , the need to restore the emotional trauma , because her old lover Sergeant Major Charles " Casey" Jones once again in her life . In the family , Jane 's mother also are frustrated because of the coming upheavals in his life lost . Jane youngest brother Tommy was released from prison to the arrival of the situation of things will become more complex . As for Maura , as the mother of modern artists and art historians to send her a letter , while Maura 's family life are becoming complex . Season , Jane and Maura will continue to take over some of the strange and bizarre case . For example, one occurred in the Revolutionary War re-enactment of the murder , one occurred in the murder of a professional baseball team in the locker room , and two , respectively, related to a surrogate mother and the witch trial of the case , Jane will also be once again faced with re - the emergence of serial murder murderer Charles Hoyt, Charles Hoyt, then toss Jane bored . ~