Spy detective Nana Saeki infiltrates a terrorist cell in the Middle East known as "Desert Claw," which has developed a dangerous biological weapon. While attempting to capture the weapon's creator, an unexpected event occurs. A giant, egg-shaped creature suddenly appears and devours the terrorists. Using its long tongue, it ensnares Nana, gradually pulling her body closer. She desperately fires her gun to escape, but the creature relentlessly chases her. In the end, Nana is completely swallowed whole by the massive creature's mouth.