4.19 Fury Rogue (The Flash 2014)

Plot Summary
Barry and Iris are seeing a grievance counselor in light of Ralph's death. Barry has difficulty grieving until Team Flash enlists the help of Snart of Earth-X to help them escort Fallout to an Argus site that is off the grid. While Snart helps Barry make time grieve upon their victory in defeating Siren X, Wells shares with Cisco that he had used Dark Matter with the Thinking Cap, breaking their promise which resulted in Wells losing his knowledge over time.