Episode Description: A new metahuman, Roy Bivolo, shows up with the ability to send people into an uncontrollable rage, and uses his ability to rob the Central City bank. The police track him to a warehouse, where he uses his abilities on a cop to facilitate his escape. Barry arrives in time to save Joe, but is almost injured himself before Oliver, as the “Arrow”, arrives to stop the cop. Later, Oliver informs Barry that they are tracking a Starling City killer who uses razor sharp boomerangs. Barry and Oliver agree to team-up and catch each other’s targets. Oliver tries to teach Barry to be more mindful of his surroundings, but Barry decides to go after Bivolo by himself. Bivolo uses his abilities on Barry, but because of Barry’s powers it makes the effects last longer. Oliver tries to stop Barry, and the two engage in a fight. Oliver manages to wrangle Barry long enough for Dr. Wells and Joe to use colored strobe light to reset Barry’s emotional state. Afterward, Barry and Oliver capture Bivolo and place him in the prison at S.T.A.R. Labs.