Percy Jackson is the adopted son of Nora and Henry Allen and the brother of Barry Allen. When they were 11 their mother died and their dad went to jail for her murder, they both grew up believing in the impossible. Barry became a CSI for the CCPD and Percy became a detective. Both want to help people and find out who really killed their mother. Then the particle accelerator exploded and they were put into a coma. They woke up and discovered something extraordinary.