"Blackbird" part two! The Birds need answers about the mysterious Blackbird, who's handing out massive increases in power to Gotham City's most dangerous metahumans...and to get them they're sending their own dangerous metahuman, Black Canary, undercover into the world of black-market super-powered fights! Roulette rules this world with an iron fist...will she give up the secrets Dinah needs? And at what price?