Steel Eagle: Atomic Threat is an action-adventure game set in New York, where the hero Steel Eagle and his ally Silver Vigilante race against time to stop Major Shadow, a ruthless terrorist who has smuggled parts of a nuclear bomb into the city. With plans to reassemble and detonate it, Major Shadow threatens mass destruction. Players control Steel Eagle in intense third-person missions, blending combat and stealth. In various missions, players can also switch to Silver Vigilante, who provides crucial tech support, hacking security systems, and offering intel. The game includes detailed environments around New York and secret bases in Santa Bertriza, featuring stealth sequences, tactical combat, and explosive final confrontations. Facing fierce guards and high-tech defenses, the duo must track bomb parts, confront Shadow's forces, and reach a climactic showdown underground. The mission’s success is the only way to prevent catastrophe, making every move and ally critical to victory.