In the penultimate episode on April 8 , 1958 , two brothers in the diamond business steal a large gem .
In the penultimate episode on April 8 , 1958 , two brothers in the diamond business try to blame the theft on McGraw .
In the penultimate episode on April 8 , 1958 , two brothers in the diamond business steal a large gem and try to blame the theft on McGraw .