Scorpion is an American action drama television series loosely based on the life of computer expert Walter O'Brien. In the series, O'Brien and his friends help each other to solve complex global problems and save lives. The series premiered on September 22, 2014 and airs in the United States on Mondays at 9:00 p.m. ET on CBS. On October 27, 2014, CBS placed a full season episode order for the first season.