First broadcast 7th August 1979.
After Sapphire narrowly saves Steel from meeting the same fate as the doomed fighter pilot, Steel becomes determined to figure out why the ghosts are being recruited at the station.
David McCallum ... Steel
Joanna Lumley ... Sapphire
Gerald James ... Tully
Tom Kelly ... Soldier
David Woodcock ... 1st voice
David Cann ... Pilot
