Dr. Wells' former protégée, Hartley Rathaway, returns toseek revenge on his mentor after being affected by the particleaccelerator explosion. Now able to manipulate sound waves, thebrilliant Rathaway is a dangerous threat to both Wells and theFlash. Meanwhile, Iris is thrilled when she's hired by theCentral City Picture News as their newest cub reporter.Unfortunately, her editor pairs her with a veteran reporter,Mason Bridge, who wants nothing to do with her. Cisco recallshis first day on the job at S.T.A.R. Labs when he met Hartleyand Caitlin. Joe asks Eddie for a favor but asks him to keep ita secret from Barry.
