At the beginning of the season Sylvia becomes pregnant with Andy's child. A baby boy, Theo, is born towards the end of the season. This is contrasted with the fate that awaits Sipowicz's older son, Andy Jr., who announces that he is to join the police force. Andy is finally bonding with his estranged son when he is gunned down, which leads the elder Sipowicz to fall off the wagon. Andy Jr's murderers are killed themselves by Simone in an act of self defense.
　　Bobby and Diane, whose relationship had been put on hold while she attended AA, resume their relationship only for Diane to begin drinking again when her abusive father beats her mother. Her father is eventually killed and her mother becomes the prime suspect.
　　James Martinez and new detective Adrienne Lesniak begin an affair but only after Lesniak tells Medavoy that she is gay, then that she is not; Martinez later breaks up with her due to her controlling and unpleasant behavior, and Lesniak eventually leaves the squad. Medavoy himself leaves his wife, recognizing that she is holding him back but it is too late to save his relationship with Donna who leaves to take up a job with Apple.

江南桃李鎮(zhèn)的一個小山村里，童飛在父親病故后，決定放棄高三的學(xué)業(yè)。媽媽為了讓童飛完成學(xué)業(yè)，只身外出打工。開學(xué)前，媽媽懷揣著學(xué)費(fèi)冒著雷雨匆匆趕回家，不幸遭受雷擊痛失右臂。為了讓童飛安心讀書，媽媽隱瞞病情，住在童飛老師梅兒的家中。從此，媽媽靠路頭擦皮鞋繼續(xù)供童飛讀書，而不知情的童飛，認(rèn)為媽媽真的沒回來，始終不忍心花媽媽辛苦掙的錢，在發(fā)奮讀書的同時，課余靠種田、打工支撐自己的生活和學(xué)業(yè)。高考結(jié)束，童飛取得優(yōu)異的成績，媽媽露出的欣慰的笑容。

黑魔蝶消失之后，新的周期開始了。奇跡少女和黑貓羅爾必須面對一個全新的敵人——神秘，令人擔(dān)憂，難以捉摸，但離他們很近。非常近，但他們不知道。馬麗娜和艾俊也從來沒有這么親密過！但這并不一定使他們的日常生活變得美好，因?yàn)樗麄儽舜吮Ｊ刂约旱拿孛埽畲蟮拿孛芫褪撬麄內(nèi)匀徊恢缹Ψ骄褪瞧孥E少女和黑貓羅爾。在一個嶄新的堪稱模范的綠色巴黎，在一個嶄新的充滿革命性的學(xué)校的中心，英雄們將經(jīng)歷一個充滿情感和啟示的學(xué)年。

　　本劇改編自同名漫畫，是一部橫跨國界的浪漫愛情故事，講述了一個不相信愛情的冷酷律師花村愛子（清原果耶 飾）、一個只愛動物的別扭獸醫(yī)白崎快（成田凌 飾），以及一個令人捉摸不透的韓國財閥三公子禹敘河（羅人友 飾）之間，由“愛犬”牽引而展開的三角關(guān)系。