The Man From U.N.C.L.E.

The See-Paris-and-Die Affair (1x22)

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Solo uses the former girlfriend (Kathryn Hays) of 2 brothers, Joseph and Max Van Schreetan (Gerald Mohr, Lloyd Bochner), to thwart their plan to control the diamond market, while at the same time THRUSH agent Corio (Alfred Ryder) tries to steal their cache of gems.