Batman: The Dark Knight Returns #[nn]

This collection brings together the 1992 one-shot Batman: Green Arrow: The Poison Tomorrow, a standalone story set outside the main DC Universe continuity. Written by Dennis O'Neil with art by Mike Grell, the tale teams the Dark Knight with the Emerald Archer to confront a threat involving a deadly toxin and a shadowy conspiracy. While not directly tied to Frank Miller's The Dark Knight Returns, it shares that series' mature, gritty tone and was originally published under DC's prestige format banner.