 By order of President Grant, Agents James West and Artemus Gordon must bring Russian prisoner Rimsky to Vladivostok, Siberia, in exchange for American Vice Consul, Millard Boyer. When he tries to escape, Rimsky falls to his death forcing Gordon to disguise himself as Rimsky to complete the exchange. The Russian contact arranging the exchange has West and Gordon imprisoned with the Vice Consul instead. There, they learn that Rimsky should have returned with 5 million dollars in extortion money from wealthy Russian immigrants. Now, the corrupt Russians are waiting for Rimsky and their cut of the ill-begotten treasure.