Under suspicion of murder Hop and Tank try to solve the riddle of the ghostly avengers to clear themselves as well as help their friend Paul Conroy. But when two of Paul's friends lost their lives as a result of a collision in midair Hop still wasn't convinced that the crash was caused by a German fighter plane reported by the pilot just before the fatal collision. About to set off on their return from the scene of the crash, the field was short and it looks like Hop is about to crash in to a fence...