Bigfoot and the Muscle Machines

Bigfoot and the Muscle Machines is a special animated TV miniseries that was aired on the animated halfhour TV series Super Sunday and Super Saturday containingsegments that ran forminutes each and every weekend, along with Jem, Robotix, and Inhumanoids. The segments were combined and turned into a 53minute featurelength film in 1985.

The scene then cuts to the rubble that once was Fountain of Youth and Jennifer bemoaning its destruction. Just as a disgusted McCall walks away, an earthquake forms a large crevice ... containing a huge fortune in gold, jewels and other rare artifacts. While he and several members of the Bigfoot team celebrate their discovery, Yank walks away ... and Jennifer joins him as they drive into the sunset.

Source: Wikipedia