Experts examine whether an interdimensional portal in the Alaska Triangle led to the disappearance of an aeroplane carrying 44 military personnel in 1950.

Bigfoot hunters investigate whether a huge, ape-like beast is responsible for a string of disappearances and mutilations in the Alaskan wilderness.

A cryptozoologist investigates reports of a sea monster in Alaska. He reviews eyewitness accounts and examines never-before-seen video evidence.

A woman claims to be under attack from an unseen force. Could it be linked to a Native American legend about a mysterious race of giants?

Guests report attacks by an aggressive spirit at a hotel. And, is a shapeshifting menace responsible for thousands of abductions in the Alaska Triangle?

In 1918 the SS Princess Sophia mysteriously sank near Juneau, Alaska. Experts look for answers to the shipwreck as a ghost hunter tries to contact her victims.