The fourth and final OVA of the Leina-centric Machine Robo: Revenge of Chronos spin-off/sequel. Rather than continuing the story of the previous Wolf Sword Legend continuity, Lightning Trap is set in a different universe. In present-day Tokyo, travel has never been more comfortable than aboard the Lightning L808, Japan's new luxury passenger jet. One day, during what appeared to be a routine flight, Haruka Leina and the other passengers were unaware of the mysterious, top-secret cargo on board, which had drawn the attention of international terrorists intent on seizing it. Now, facing a dangerous hostage situation, only special agent Laika Strange and the brave Leina may be able to rescue the passengers and prevent the deadly cargo from falling into the wrong hands...