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A new villain Pied Piper is in Central city who has gloves that can manipulate the sound waves. Hartley used to work at S.T.A.R labs and was the one who made the particle accelerator. The Flash must defeat Pied Piper to keep him in the prison a second time. Dr. Wells goes to a press conference to tell the people about his secret. Joe and Eddie start their investigation on Dr. Wells.