Hired to negotiate an exchange of spies, ex-agent Smith (Robert Horton) finds he's involved in a double-cross plot. Sebastian Cabot, Jill St. John. Borensko: Eric Pohlmann. Leo: Dudley Foster. Johns: Clive Graham. Karkov: George Roubicek. Boreman: Eric Longworth. Filmed in Europe. Roy (Ward) Baker directed.