The Night of the Brain - S2.E21

A mysterious figure in a secret cave makes moves on a chessboard, using a figure of James West. The agents start getting newspapers predicting the deaths of friends that haven't occurred yet. They are unable to stop the deaths but find the shop where the newspapers are printed. Following the trail, Jim is lured into the lair of Mr. Braine, a crippled criminal mastermind who gets about in a steam-powered munitions-armed wheelchair. Braine has planned their every move and response and wants Jim to join him in his plan to kill world leaders and replace them with lookalikes. He already has a double of Artemus Gordon. Braine has anticipated the real Artie sneaking in and taking the place of the lookalike, but Gordon double-bluffs him with a mask underneath his mask. taking advantage of the distraction, Jim confronts Braine and manages to defeat him, blowing up the wheelchair and Braine.