Someone is killing members of the royal family of a small European principality who's lives are insured by Lime Steet. In order to protect the sole remaining heir, Christina, Grey agrees to take her back to the United States to his farm. But the assassin follows them across the Atlantic.

The cockpit crew of a 747 stage a hijacking in order to extort four million dollars from their airline, then plant evidence that points to D.B. Cooper. Grey and Eddie see through their plot, but to prove their case they must first figure out how the crew got the ransom off the airplane after it landed and was beseiged by FBI agents.

Legendary fighter pilot Woody Harrell is testing a new jet prototype when it suddenly vanishes from radar screens leaving Lime Street on the hook for a $200 million insurance payout. Grey and Eddie join the FAA in it's investigation and begin to suspect foul play when no wreckage can be found.