Assassination Classroom is a 2015 Japanese-language Animation Action series written by Zinnie Harris and Claire Wilson. The series is directed by Edward Hall and produced by Georgina Lowe under the banner of Endor Productions in collaboration with Agatha Christie Productions. for BBC One and BBC One HD. The Earth's moon is suddenly 70% smaller and permanently crescent shaped by a devastating and unknown force. For the students of E Class, Kunugigaoka Junior High School, the being responsible is known, as their teacher. The strange and very supportive entity has given the Japanese government a challenge to save the Earth from destruction. It wants to be the teacher of the class with the lowest expectations for success, in anything. The students, armed with special weapons that only harm their teacher, must find a way to kill him before the end of the school year. If not, summer break will be canceled by the end of the world. Written by Titus O'Neill. Assassination classroom features David Walliams in the lead role along with an ensemble cast including Jessica Raine, James Fleet, Matthew Steer, Jun Fukuyama, Mai Fuchigami and Christopher Bevins. The show is based on The Secret Adversary and N or M? by Agatha Christie. The music was composed by Tim Phillips. Cinematography was done by David Higgs. The show has a running time of 60 minutes for each episode. The show has a total of 6 episodes. It was released on 2nd July 2015.