A snow male creature ice monster in the Swiss Alps terrorizes vacationers at a mountain resort and Martin, Diana and Java are sent to investigate. Upon arriving they see firsthand how the beast strikes from beneath the snow. They have to climb the mountain and confront the ancient beast in its lair. Martin defeats Icetopis.

Martin, Diana & Java are sent to Mohenjo-Daro, Pakistan in Mohenjo-daro to stop an evil scientist, Dr. Green from retrieving the temple's treasure and spirit of darkness, Nadu by using Java.

The grand reopening gala of the Blackwater Mountain Lodge in British Columbia comes to an abrupt ending when the breaking of an old photo of the long dead founder of the lodge triggers ghostly activity and a disembodied voice ordering everyone out.

The gang go to investigate a lodge that has a haunting going on inside. It turns out the owner of the place is the one haunting it and doesn't want anyone there. As they find clues along the way they encounter the ghost. Martin tries to trap it but it only ends up possessing Diana instead and starts chasing Martin and Java around but at the end everything goes back to normal.

When a young woman named Katie discovers an ancient Celtic necklace, strange things begin to happen. Martin, Diana & Java investigate and discover that an evil female spirit has inhabited the young woman so she can give out evil candy, which causes people to literally become their costumes.

An archaeologist, Professor Melanie Samson who is digging for ancient Peruvian relics accidentally opens a portal to an underworld – unleashing an ancient civilization of aliens who have been living in the Earth’s core.

Back at Torrington Academy, Java is amusing the students by cutting the grass by hand. He's been given a new high tech lawnmower but it seems that the caveman's still freaked out by technology (a running gag). Martin vows to rid him of his phobia and Diana foresees trouble. After making Java wreck both the lawnmower and his pager, Martin realizes the Center is calling them and it's off there through a door that's just appeared in a nearby wall.

When strange things start happening at an all-girls boarding school, Diana goes undercover as a student and finds that an ancient witch is trying to take over the school. It is up to Martin and Java to stop the witch and save Diana who has been turned into one of her minions.

A kid named Cameron accidentally unleashes an ancient spirit looking for revenge, but before this spirit can get revenge he must free himself. So he starts to turn people into trees, but Martin and the gang are sent off to stop him.

Martin and Diana find themselves in a snow-globe world. They discover that a lonely man desiring a perfect, eternal Christmas, broke a magic snow globe, causing its contents to be released and come to life. Martin and Diana, with the help of Billy and Java must force the contents back into the globe before they become trapped forever.

A boat crashes into an icy cliff and frees a mythological siren trapped in the ice for 50 years. Now Martin and Java must overcome her compelling melody and stop her from killing all of the men in the town and spreading chaos and destruction.

This episode begins when two men in Norway, Sven and Olaf set sail in a ship but they have trouble getting where they needed to go because of the rocky waves. As they saw a ice part, they see a women like figure ahead. The gang uncover the origins of a tragic love story.

At a university in Vancouver, the trio realize that a professor doing experimental sleep research has unwittingly unleashed the Sandman, a mythical creature who traps sleeping people in his nightmare world. In order to stop him, the trio must journey into the nightmare world and confront their own fears.