The series was based on SST (Super-Sized Trucks) Muscle Machines toy line by Playskool who in turn was owned by Hasbro.
The story is about five people who run a public monster truck show led by Yank Justice, driver of Bigfoot.
In the end, Ravenscroft finds the Fountain and, after drinking its water, is turned into a young man, becoming a far more formidable opponent for Yank.
Ravenscroft tries to flee, swearing revenge, but the effects of the Fountain wear off and he is quickly turned back into his elderly self and is unable to see that he is walking into an alligator-infested swamp, presumably meeting his fate.
Just as a disgusted McCall walks away, an earthquake forms a large crevice, containing a huge fortune in gold, jewels and other rare artifacts.