David (Bixby) is captured by a couple of gold diggers in a deserted town, and forced to dig for gold with two other 'slaves' in a mine. The uneasy alliance between the prospectors (one is an escaped convict, the other, an alcoholic former prison guard from the same gaol) deteriorates throughout the ordeal, as racial undertones surface, combined with David's careful baiting to expose cracks that could potentially lead the trio to safety.
Next-to-last episode has a solid cast with Jeffrey C.Kramer playing one of the slaves (he played deputy Hendricks in the first two "Jaws" films), and stand-out performances by John Hancock and Charles Tyner as the ebony and ivory captors. Hancock's bulk and intellect tower above the volatile Tyner character, and the two become estranged as Tyner begins to suspect (fuelled by David's measured goading) he's the real slave, dominated and humiliated by Hancock (hinting at reverse racial discrimination). Tyner's character reminded me of the Ezra Cobb character played by Roberts Blossom in the Ed Gein-inspired horror film "Deranged".
The Hulk-outs are pretty standard (a ballroom blitz and a mine sweep), although in keeping with later episodes, big Lou is given some additional screen time to "act", showing what happens to the Hulk once he's out of frame and no longer agitated. Overall, it's Hancock and Tyner who steal the show and an entertaining episode ensues.