Dr. Quest is missing while on an expedition to find the Yeti. Jonny and his friends head to the Himalayas to find him, but run into another scientist who's determined to bring back the Yeti.

Ezekiel Rage steals a compact nuclear device and plans to blow up the polar ice caps. The Aurora Borealis holds the key to stopping him.

In a father-son bonding trip in Devon, Benton and Jonny head to the big pond to fish but on the way, they come across an idyllic little village that's just a little too peaceful.

Scientists are working on transdimensional technology that will help them open a portal to another dimension - and its denizens, who waste no time staking their claim on Earth.

When Jonny and Jessie challenge each other to a Virtual Reality game in Questworld, Surd intervenes with a challenge of his own.

Ezekiel Rage plants a nuclear bomb in the bowels of Earth and Jonny and Jessie must revert back into time to stop his evil deed.

On a visit to the Czech Republic, Jonny and Jessie encounter a ghostly apparition that leads them to an incomplete sonata -- and a generations-old secret.