Season 4

Christina visits a rundown amusement park to try to make friends with the ghost of a little girl. Araya has a close shave with a gang of zombies. Doubting Dave shows us a Halloween trick that will scare the heck out of passersby

Our two Mystery Hunters play detective. Some super sleuthing techniques allow Christina to get to the bottom of a UFO sighting. Araya travels to South Africa to solve a 2-million-year-old crime.

Araya and Christina are on a seriously monstrous search! Christina's investigation of vampire bones found in Prague leads to a night in the cemetery. While in South Africa, Araya scales one of the country's highest waterfalls in search of the feared Inkanyamba, Lake Monster.

These days robots are everywhere. Could they turn evil and take over the Earth? Christina has to meet a few to find out. Araya discovers the truth behind those ancient brutes known as Neanderthals.

Christina and Araya team up to search for gold. Christina prowls the backstreets of Prague to find out who alchemists were; did these mysterious men really have the secret to turning cheap metal into gold? Araya goes looking for a lost gold mine whose curse is said to destroy those who try to find it.

The Mystery Hunters visit some of the most amazing and unusual places on Earth! Araya gets to the bottom of one of the wonders of the world: the stone churches of Lalibela. Were they built by some magical and unknown force? Christina examines one of the most unusual spots on Earth, the Mima Mounds – who or what created them and why?

In 1920, Thomas Edison told a reporter he invented a telephone that could be used to speak to the dead. Christina uses the Ghost Box to try and speak to the inventor. Araya investigates a psychic who helps the police solve crimes.

Doubting Dave goes on a hunt for that most elusive of creatures - Santa Claus! Christina tries to figure out if Reindeer really can fly and she uncovers some surprising things. Araya searches for the magnetic north ... could Santa's workshop be hidden there?

Christina finds out that there are monsters all around us all the time - we just can't see them! And Araya tries to find out why a mysterious Lizard Man keeps coming back to the same town to terrorize its residents.

Indiana Jones and many others have looked for it, but it takes a Mystery Hunter to find it – it's the Ark of the Covenant! We look for and find the most precious artifact of all in this epic trek across Ethiopia.

Many people who have almost died say they felt themselves leave their bodies. Could that really happen? Christina tries astral projection to get a glimpse of how it might be possible. One of the most mysterious men of all time, escape artist Houdini, managed to escape every trap but one... How did he die? Araya follows in his footsteps to find out.

Can your dog really read your mind? Many people think so. Araya puts them to the test. And Christina hunts down one of the scariest beasts ever: the Jersey Devil; can she overcome her fears and find the truth?

We recap the most exciting moments of the season with the help of amazing behind the scenes footage and video diaries taken by the Mystery Hunters themselves.