The team pick up Jessie from her vacation with her mother having been studying the now extinct Malenque civilization who hold a dark secret.
Interest arises in the legend of the golem but dark forces are also interested in it.
The team visit training grounds to learn about the new masking mask technology only for an old foe to appear.
The compound comes under attack when Bigfoot appears to be stealing their electronic components.
Race and Jonny are captured by Surd and Surd switches bodies with Race as he heads back to Quest compound to deal with Dr. Quest.
A research centre under water dedicated to studying the marine life comes under attack from hordes of carnivorous amphibians.
Dr. Quest is invited to the most secure base where a bio-logical computer receives its first ever test only for people to end up in a catatonic state.
A mysterious island surrounded by fog is discovered but it is home to a strange caretaker along with supernatural phenomena and a tragic past.
An ecological dome complex near New Mexico has a link with mysterious events with Hadji, Jonny and his grandfather are about to become intimate with.
The team plan to watch the lunar eclipse but when a strange woman charms Hadji, their plans change.
Dr. Quest finds himself the prime suspect when Air Force One is hijacked as the team struggle to find the missing plane.
Dr. Quest hopes to learn more about the restorative tree sap which is under threat from loggers but everyone soon finds themselves in danger.
With the assistance of Dr. Quest, Professor Diana Cruz has managed to open a portal into another dimension only for interlopers to arrive.
Jonny and Jessie are keen to settle a score so enter Quest World to play a game only for Surd to unleash a sleeper virus.
Returning from the movies, Jessie ends up going on a rampage at Quest Compound before falling unconscious having been brainwashed by Surd.
During a visit to see Hadji, the team discover a rare Falcon but it is soon clear that others are also interested.
Ezekiel Rage plants a deadly bomb two miles within the Earth's crust and it is a race against time to save the world before it explodes.
General Vostok returns and his plan is to harness the power of Winter and he forces Dr. Quest to build the ultimate weapon he needs.
Dr. Zin is on his deathbed and asks his daughters to carry out his dream and eliminate the Quest family.
Dr. Zin manages to revive his robot spies and they ravage the Quest compound abducting Jonny, Jessie and Estella.
Genres: Animation General, Sci-Fi
Runtime: 30 Minutes
Premiere: August, 1996
Ended: April, 1997