The film also features Will Nipper as Jonny Quest, JoBeth Williams as Jade Kenyon, Anndi McAfee as Jessie, and Jeffrey Tambor as Dr.
Team Quest, working as associates for international spy operation Intelligence-One, are given an assignment to investigate occurrences of mutated animals and plant life in Peru.
Just after Jade's arrival, Benton and Rachel are kidnapped by Dr. Zin, who has caused the mutations while perfecting processes to bring monsters called "replicants" to life.
Convinced Benton could have taken the shot and saved Rachel, Jonny swears to kill Zin in revenge, avenge his mother's death, and show up his father.
Later that night, after a quick coffee break at the cafe, Team Quest and Jessie enter the catacombs of Rome, where Devlon is hiding out in a makeshift lab.
It is revealed Devlon was an employee of Zin's who ran away with an alchemy formula he'd helped invent, as 100% pure gold was the key ingredient to improving his cloning process.
As the plant begins to explode, Jonny is separated from the rest of Team Quest in their escape, but his dolphin friends lead him safely out of the compound underwater.
As the Bannon-Kenyon family sets sail, one of Dr. Zin's clones is revealed to be floating in the ocean waters in a tube, having survived the explosion of the Australian compound.