A secret agent goes after the gang that stole the crown jewels of a European monarchy.
Agent Dexter (X-9)
Shara Graustark
Baron Michael Karsten
Blackstone
Maroni
Pidge
Chief FBI Agent Wheeler (as Larry Blake)
FBI Agent Tommy Dawson (C-5)
Henchman Packard
'Jolly Roger' Ticket Barker [Chs. 1, 4, 7-9]
