主角大狼十三自小被组织捡养，并成为传说级杀手。某次任务中，他遭到神秘生物兵器刺中，竟意外变回中学生的模样，从此开始了国中生活……
ripTank is an American animated television series which premiered April 2, 2014 on Comedy Central。 The show is made up of various sketches, portrayed by multiple animation styles and writers. Although no direct correlation exists between the different stories, a continued theme of dark satire prevails throughout.
