A crossover event that began on "The Flash" concludes with Oliver teaming with the Flash to stop a boomerang-wielding killer who plants five bombs in the city that are set to explode at the same time.
| Creator | Andrew Kreisberg |
|---|---|
| Actor | Stephen Amell, David Ramsey, Rick Gonzalez |
| Country | United States of America |
| Production | Berlanti Productions |