Charles Aidman guest-stars as tycoon Leslie Grey, who hires Nichols, Darrell and Darrell to prevent a corporation—which he hopes to control—from learning a secret of his past. Grey does not reveal the secret to the lawyers. Neil Darrell(James Farentino), armed with basic information about their client, sets out to find it. In Mexico, he meets Pablo Delgado (Rodolfo Acosta and gets information which leads him to
Adolph Zinner (Leo Gordon).