Batman / Green Arrow: The Poison Tomorrow

In this 1992 one-shot from DC, Denny O'Neil and Michael Netzer bring together the Dark Knight and the Emerald Archer for a single, self-contained thriller. The story pits the two heroes against a chilling ecological threat, as a mysterious toxin emerges from the shadows of Gotham's industrial underbelly. A tight, atmospheric team-up that showcases O'Neil's knack for street-level stakes and Netzer's detailed, shadow-drenched art.