In *DC Super Heroes vs. Eagle Talon*, the Joker travels to Japan to steal secret weapons from the Eagle Talon Society, furthering his scheme to generate pure chaos. Pursued by the Justice League during this mission, an anomaly surfaces in Batman's behavior, escalating into a critical concern. The Eagle Talon Society undertakes the investigation of Batman's condition and the origins of his aberrant actions. Their inquiry leads them to reexamine Bruce Wayne's most traumatic event—the murder of his parents—probing this tragedy as a possible influence on Batman's current state.