Steve and Rudy go to check up on scientist, Cheryl Osborne, who was performing research on chimpanzees but who has ceased communications. When they arrive they find something has destroyed the lab, and Rudy is bitten by a rampaging chimpanzee. Rudy begins to turn psychotic and Steve must both stop him and find Osborne before it's too late.
Did You Know?
The glamour magazine photos that Steve and Oscar are looking at in the final minute of the episode are images of none other than Farrah Fawcett-Majors, Steve's beloved wife at the time, and guest star in several of the SMDM episodes. This was her final appearance in the series, so this cameo inclusion was a sort of "final hurrah" in honor of her participation. See more
When Steve frees himself from dangling upside-down from the rope, the final strand of rope retains its spiral shape even when Steve's weight is pulling down on it; it's obviously a stiff metal wire strand from a spiral-wound steel aircraft-cable, not a flexible fiber of rope that would straighten out under tension, even if it was formed and set in a spiral shape when it had been part of the rope. See more