In the not-too-distant future, the human world has long been overpopulated. Humanity marched to the stars in search of a new home, and just as this was going on, the moon's alignment caused massive earthquakes to ripple across the world, lasting several decades. Humanity was demolished. When the land finally recovered, humanity reemerged to face this strange yet familiar world. Will we, who once lorded over this domain, still remain the masters of this world? (Source: Yu Alexius Anime Portal)

The fourth and final OVA of the Leina-centric Machine Robo: Revenge of Chronos spin-off/sequel. Instead of following the story of the previous Wolf Sword Legend continuity, Lightning Trap takes place in another universe. In present day Tokyo, traveling has never been more comfortable than aboard the Lightning L808, Japan's new luxury passenger plane. One day, on what seemed to be a routine flight, Haruka Leina and the plane's passengers were unaware of the mysterious and top secret cargo brought aboard, which attracted the attention of international terrorists set on obtaining it. Now, with a dangerous hostage situation at hand, only special agent Laika Strange and brave Leina may be able to save the passengers, and keep the deadly cargo from falling into the wrong hands...

Episodes 25 & 26, added to DVD.

In the current era, a small percentage of people called Special Abilities have skills and powers normal humans do not possess. An autonomous organization, the Deviant Control Office, keeps these Special Abilities in check. Though some wish to maintain this order and peace, some wish to take advantage of their abilities and obtain more power in this world.