Red Hood, alias Jason Todd, was transported from modern Gotham City to feudal Japan during Gorilla Grodd's Quake Engine activation at Arkham Asylum. Stranded in the past, he assumed the guise of a traveling monk, adopting a subtler mask to infiltrate the era while gathering intelligence. For two years, he worked covertly alongside Nightwing, Robin, and Red Robin, collecting vital data on their temporal displacement.

After Batman's arrival, Red Hood received orders to track the Joker and Harley Quinn, who disappeared following an explosion. He found them living as amnesiac farmers, devoid of their criminal pasts. Despite the Joker's role in his own death, Red Hood honored Batman's command to preserve their newfound peace.

These efforts contributed to the displaced heroes' campaign against Gotham villains ruling as feudal warlords. Red Hood fought in the climactic "Field of Hell" battle, where the Bat-Family and allies clashed with the villains' combined armies and mechanized castle constructs.