经历了严苛的考验，笠原郁（荣仓奈奈 饰）逐渐成长为一名优秀的图书队特遣队队员。而在小田原图书馆守卫战之后，她似乎终于发现，多年来始终念兹在兹的王子殿下正是那位经常摆着一张臭脸的教官堂上笃（冈田准一 饰）。某天，郁的父母意外来访，她手忙脚乱，因为她始终未将自己真正的工作告诉他们。因病失聪的女孩中泽毬江（土屋太凤 饰）多年来一直暗恋大哥哥一样的小牧干久（田中圭 饰），可谁知小牧被良化队指控向残疾人传播了有害身心健康的书籍而遭到被捕。另一方面，名叫朝比奈修二（中村苍 饰）的博物馆研究员接近柴崎麻子（栗山千明 饰），他和善的笑容背后另有企图。手塚光（福士苍汰 饰）接二连三接到神秘电话，来电者掌握着图书队未来的命运…… 本片根据有川浩的原作改编。

Iku (Nana Eikura) joined the Library Defense Force after a member from that team retrieved an important book that was targeted for censorship. She is assigned to work under Atsushi’s (Junichi Okada) team. She endures Atsushi's harsh treatment and looks for the member who retrieved her book. She also finds herself becoming attracted to Atsushi. Iku meets female high school student Marie (Tao Tsuchiya) at the library. Maries has a hearing disability. She is also a childhood friend of Mikihisa (Kei Tanaka). Iku senses Marie’s strong feelings for Mikihisa. Asako (Chiaki Kuriyama) works as a clerk for the Library Task Force. She has frequent meetings with curator Shuji (Aoi Nakamura). This creates complicated feelings for Hikaru (Sota Fukushi). One day, Mikihisa is arrested because of a book he recommended to Marie. Official reason given is because the book is unsuitable for disabled people. The members of the Library Task Force are angered by Mikihisa's arrest.

関東図書基地で図書特殊部隊（通称・タスクフォース）に所属する笠原郁は、検閲で取り上げられそうになった大事な本を取り返してくれた図書隊員を追って戦闘職であるタスクフォースとなった。堂上班に配属され、鬼教官である堂上篤の罵倒にもシゴキにも耐え、顔も覚えていない“王子様”を捜している。なのに、なぜか堂上にことが気になり始めている自分に戸惑いも感じる日々。ある日、郁は図書館で聴覚障害のある女子高生・中澤毬江と知り合う。毬江は堂上班の先輩・小牧幹久の幼馴染で、小牧にお薦めの本を教えてもらって読んでいるという。毬江の中に小牧へのほのかな恋心を感じ取った郁。その頃、図書館の窓口業務をする柴崎麻子は、朝比奈修二と名乗る学芸員の男性と頻繁に会うようになっていた。

미디어 양화법에 대항해 책과 읽을 자유를 수호하는 도서대원들의 활약을 그린 스페셜 드라마.

도조 교관에게 점점 마음이 쓰이기 시작하자 당황하는 카사하라, 청각장애인 여고생 마리에에게 책을 추천했다가 양화대의 함정에 빠져 구속되는 코마키, 시바사키가 아사히나라는 큐레이터 남성과 자주 만나자 복잡한 심경을 드러내는 테즈카의 에피소드들이 그려진다.

애니메이션 시리즈와 실사 영화로도 제작된 바 있는 아리카와 히로의 소설 「도서관 전쟁」 시리즈를 원작으로 하는 작품.