A sudden storm destroys the Robinson's food supply, artificially created by an unscrupulous space trader with an ulterior motive. He thereafter makes himself known and uses food to lure them into trading, but Prof. Robinson stands fast. Stuck with limited rations (practically nothing more than a few protein pills and a swig of water), only Dr. Smith among the Robinson party grumbles. The trader soon has Smith doing business, at first trading the robot for food, then for Smith himself to trade the robot back. By verbal agreement, the trader intimates he wouldn't collect Smith for another 200 years, but verbal indications aren't binding, and under the fine print of their signed contract, the trader exercises a clause whereby he can collect - now! (his intent all along). Written by
Did You Know?
The language duplicator helmet that the Trader adorns to be able to converse with Will and Dr. Smith is the wish machine helmet from Wish Upon a Star. See more
During his escape from the Trader, Smith parts with his boots, yet when Smith returns to the Jupiter 2 he has boots on (though unpolished). See more
But, Dr. Smith is a human being. You just can't buy and sell him.
The Space Trader
Why not? He is an item, a commodity like anything else in my fair.