After the death of his parents, millionaire playboy Jack Cole is framed on charges of embezzlement. In prison, Cole learns various tricks of the criminal trade - lockpicking, safecracking, electronic surveillance, etc. Upon his release, Cole uses his wealth and his newly learned talents to help others, leaving his calling card, a "sword of justice", at the scene.

Ce synopsis est en anglais : nous ne l'avons pas encore traduit.