Dark Prisoner is the thirty-third mission in Earth Defense Force 2025 Online and the thirty-fourth mission in Earth Defense Force 4.1: The Shadow of New Despair Online.
Description[]
2025:
4.1: We've lost contact with three squads in the same area. We also lost contact with one of the squads sent to rescue them. The enemy has set traps to prevent our advance. No matter what, we must press forward. Move in!