Five unruly teenagers forced into community service to atone for their crimes develop superhero powers when a freak electrical storm hits them.

Mysteries are revealed like the words "Simple Plan," "Third Secret of Fatima" and also the mysterious white man which are all mentioned in the movie "SPEC: Heaven".

High school student Saya Toma lost her parents and younger brother in an airplane accident. Detective Akio Kondo came and told her "your family has a high possibility that they were killed by people who have spec." That was the first time she heard of "spec". 6 years later, Saya Toma, who has never forgotten what the Detective said, decides to become a detective. She returns to Japan after receiving training by the FBI in the United States. Saya Toma is assigned to work unsolved cases in the Public Security Bureau. Meanwhile, because of Satoshi Chii's scheme, Juichi Ninomae considers Saya Toma his parents' enemy and tries to push her to the edge. Satoshi Chii's scheme has also caused Saya Toma and Juichi Ninomae to forget that they are brother and sister. The siblings are headed to a life-staking fight. A girl named Maho Ueno becomes involved in their fight. To protect Maho Ueno, Saya Toma uses "spec".

平凡的高中生鸭川嘉郎（染谷将太 饰）本以为日子就会这么不咸不淡的度过。直到某一天，他发现他突然能听到别人脑中所思所想。这种被称作超能力的事物，一开始让鸭川不知该怎么运用。最初鸭川只把这种能力用到暗恋的女生浅见纱英（真野惠里菜 饰）身上。而后，鸭川发现，他居然不是唯一的超能力者。在他的周围潜藏着各路高手，他的青梅竹马平野美由纪（夏帆 饰）可以与之用意念交流；镇上咖啡店的店长，则可以用意念移动物体；而学校篮球队的成员，可以瞬间位移…… 这些刚刚觉醒拥有超能力的人，起初都只把这些能力用来谋福利和方便。直到恶势力的入侵，他们开始联手，用自己的超能力捍卫自己生存的土地，与恶势力们展开了精彩且激烈的争斗。

Saya Toma is a female detective with an IQ of 201. Takeru Sebumi is a career detective with a distinguished background. They work on cases by postulating the "SPEC" of the unknown criminals and then deduce the criminal's unknown "SPEC" to make arrests. A mystery occurs when bodies are found on a cruiser in the ocean. Saya Toma and Ryo Kase of the Tokyo Metropolitan Police Department are brought in to solve the case.

Set one year after the fight between detectives Saya Toma, Takeru Sebumi, and Satoshi Chii. More confrontations ensues between the detectives at the Unidentified Crimes Unit of the Tokyo Metropolitan Police Department. Takeru Sebumi returns after taking a break due to his eye problems. Kenzo Ichiyanagi is appointed section chief, while Kotaro Nonomura is demoted. New member Shu Kikkawa joins the team.

日本警视厅特殊部队（SIT）小队长濑文焚流（加濑亮 饰），在一次执行任务时遭遇队友的离奇死亡，面对高层他百口莫辩，最终被调职到公安部公安第五课——不明事件调查科。该部门专门调查一些匪夷所思的超自然案件，当然在所谓“科学昌明”的现代化社会，这也意味着第五课是一个很难得到认可的边缘部门。除濑文外，第五课只有油滑的上司野野村光太郎和智商高达201的怪女孩当麻纱绫（户田惠梨香 饰）。在此期间，预言师、神之手等各种各样拥有超能力（SPEC）的人物接连登场。 濑文在和当麻办案的过程中，渐渐趋近了一个鲜为人知且充满阴谋和秘密的未知世界……