ได้ Barry triggers a trap set by Hartley, which starts shredding Barry's organs. Dr. Wells taps into a satellite and sends an alternative frequency to disable Hartley's weapons. Later, Joe has Eddie start an investigation into Dr. Wells. Hartley, imprisoned back in the particle accelerator, reveals to Cisco that he knows where Ronnie is and how to save him. In his secret room, Dr. Wells uses the tachyon technology to temporarily recharge his speed force energy.