Barry is thrilled when Oliver, Felicity, and Diggle come toCentral City to investigate a case involving a deadlyboomerang. Excited about teaming up with his friend, Barryasks Oliver if he'd like to help him stop Ray Bivolo, themeta-human Barry is currently tracking. Bivolo causes people tolose control of their emotions and has been using that skill torob banks. Unfortunately, the superhero partnership doesn't goas smoothly as Barry expected. When Oliver tells Barry he stillhas a lot to learn, Barry sets out to prove him wrong byattempting to stop Bivolo alone. However, when Bivolo infectsBarry and sets him on a rage rampage, everyone is in danger,and the only one who can stop him is the Arrow. Meanwhile,Iris is furious when Eddie tries to get a task force to stopThe Flash, Joe and Dr. Wells agree the Arrow is a badinfluence on Barry, and Caitlin and Cisco deal with a new teamin S.T.A.R. Labs.
