A terrorist is threatening to blow up a space rocket unless he gets paid a billion dollars. There is lots of action as Spence rides a torpedo and Bru deflects a laser beam.

Spence and his nephew are testing the M.A.J.O.R., Morphizing Acrylonitrile JPS-particle Organic Replica or in other words - an android. The M.A.J.O.R. accidentally receives Spence's memory during a scan of its and Spence's brain.