Nightwing (2016-) #24 (NOOK Comics with Zoom View)

“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!