Story by Tim Seeley. Art by Miguel Mendonca, Minkyu Jung. Cover by Casey Jones.
'BLOCKBUSTER' part three. Nightwing is trapped on a submarine, and in order to escape he must defeat the most lethal villains in the DCU led by Tiger Shark. And if he can't escape, Blockbuster will get what he wants: all of his criminal competition at the bottom of the sea, along with Nightwing.