The Eisner-Award winning series returns, sending Nightwing and Batgirl sailing the high seas on a quest to unearth the secrets behind an underground society dating back to the birth of Blüdhaven. Upon the vast ocean Nightwing will forge an uneasy alliance with an old flame who has a dangerously close connection to this secret society. Will Dick Grayson learn a pirate's life's for him or leap off the plank?