Jonny's Golden Quest is an animated telefilm, produced in 1993, starring Jonny Quest. It is set after and references the continuity of the previous two Jonny Quest series.
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. Dr. Benton Quest and his bodyguard "Race" Bannon bring along Benton's sons Jonny and (adopted from India) Hadji, and their dog Bandit. Also coming along is Benton's biologist wife Dr. Rachel Quest, who usually does not come along on their adventures.
Upon arriving in Peru, Race runs into his ex-wife Jade Kenyon, who was sent by Intelligence-One as their civilian contact for the investigation. 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. Zin has also been working on cloning technology, and manages to successfully clone himself before Race, Jonny, and Hadji arrive to save Benton and Rachel. However, Rachel is taken hostage by Zin's clone and, after Benton freezes while attempting to shoot down Zin in his hovercraft (as he would have shot Rachel as well), both Rachel and Zin's clone are killed in the erupting volcano.
Rachel's murder causes Benton to quit I-1, and drives a wedge into his already strained relationship with Jonny. As he begins shutting down the Quest compound in Mexico, an American girl named Jessie turns up with a mask made of synthetically pure gold, which she tells Team Quest she was to deliver to an associate of her alchemist father, Dr. Victor Devlon. When approached by Intelligence-One to discover the whereabouts of Dr. Devlon and the secrets to his alchemy process, Benton reluctantly accepts.
Team Quest and Jessie begin a globe-trotting search for Jessie's father and his associates, pursued at every turn by Dr. Zin and his operatives, one of whom is revealed to be a reluctant Jade. During the trip, Jonny and Jessie begin to grow fond of one another, while Jonny's relationship with his father continues to deteriorate. Convinced Benton could have taken the shot, Jonny swears to kill Zin in revenge and show up his father.
Dr. Quest uses a sentient supercomputer, 3-DAC, to help him, the rest of his team, and Jessie follow the trail of Devlon from Tokyo, to Paris, and then to the catacombs of Rome, where he 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. Everything Jessie had told Team Quest about his father and the mask were lies to have them help Zin find Devlon, as Zin had kidnapped Jessie's mother - Jade - and forced them to play parts in his schemes. Jade later reveals to Jessie that Race is her father.
Dr. Zin kills Devlon and kidnaps Race, taking him to a compound in the Australian Outback to use Race's DNA to improve the vitality of Zin's own clones. When Zin's intelligent replicant bodyguard Snipe prepares to execute the group, Hadji attempts to hypnotize him into letting them go, but Snipe is unaffected by hypnosis, so Hadji brings the mummies to life. They attack and kill Snipe, allowing Team Quest, Jessie and Jade to get away.
The group arrive at the Australian compound to save Race and destroy the remaining replicants, but when Zin captures Benton and Jonny is faced with the same dilemma of whether or not he can take a shot at Zin while he is holding Benton hostage, Jonny freezes as well. However, he is able to use a dolphin communicator his mother had given him to get a pair of dolphins to bump Zin away from his father. Zin escapes to a getaway submarine and sends a missile to destroy the compound. This plan backfires when Zin's sub ends up trapped beneath falling debris, and he is left to die. 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.
Jonny and Benton reconcile, and Benton makes a full-fledged return to Intelligence-One work. Race, who now knows Jessie is his daughter, joins Jessie and Jade on a sea cruise vacation - but not before Jessie gives Jonny a goodbye kiss. 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.
- Will Nipper as Jonny Quest
- Ed Gilbert as the commander
- George Hearn as the president
- Whitby Hertford
- Meredith MacRae as Dr. Rachel Quest
- Anndi McAfee as Jessie Kenyon
- Don Messick as Dr. Benton Quest and Bandit
- Rob Paulsen as Hadji
- Peter Renaday as Dr. Victor Devlon
- Pepe Serna as Agent Menendez
- Jeffrey Tambor as Dr. Zin
- Marcelo Tubert as Chef
- Granville Van Dusen as Race Bannon
- B. J. Ward as 3-DAC
- Frank Welker as Snipe and Replicants
- Jonny's Golden Quest at the Internet Movie Database