Published in Joe 90 Top Secret #5, 02/15/1969 - cover and 3 pages.
"Joe's Mission: Take-Over Spy Ship" On an oil rig in the cold gray waters of the North Sea has a major explosion on it. A ship nearby comes to the rescue. Unfortunately, the rig is part of a top-secret early warning system and W.I.N. learns that the rescue ship is really an enemy spy ship. Joe 90 must gain the skills of someone capable of hijacking the ship and bringing back to the UK.