Barry is thrilled when Oliver, Felicity and Diggle come to Central City to investigate a case involving a deadly boomerang. The crossover continues on Arrow S03E08 The Brave and the Bold.
| Creator | Geoff Johns |
|---|---|
| Actor | Grant Gustin, Candice Patton, Danielle Panabaker |
| Country | United States of America |
| Production | Warner Bros. Television |