Robin, Vol. 2 #153 (2006)

Robin, Boy Wanted, Run Through The Jungle
During a wave of attacks on the friends and family of the Justice League of America, Captain Boomerang was hired by someone to murder Jack Drake. Little did he know that an unknown person had sent Jack a gun, with a note that read simply "defend yourself". The resulting chaos claimed both of their lives, and left two young men orphans.Now the sons of that tragedy, Robin and the new Captain Boomerang (Owen Mercer) find that they have to work together in order to prevent the destruction of Gotham City. The Joker set up a contingency plan years ago. He left an armed nuclear device in one of his numerous hideouts in the city with a countdown timer. That timer's got 24 hours to go before the device detonates. And to make matters worse, the device has been moved.Can these two overcome the tragedy that unites them in order to save Gotham?
Release Date: 2006