In this week's episode of Fact or Faked, Ben, Jael and Austin travel to the land down under to investigate a mermaid case in Cairns, Australia. They dive into the waters of the Great Barrier Reef on the hunt for possible suspects and come face to face with an unwelcome predator! Meanwhile, Bill, Chi-Lan and Larry travel to Mililani Hawaii, to visit a local family that believes they have captured photos of a guardian angel. The team tests out several popular theories to see if they can recreate the ghostly image in the photos, before trying to find an apparition of their own.

In the final episode of the season, Ben, Larry and Chi-Lan travel down to the Louisiana Bayou in search of the legendary Honey Island Swamp Monster. They put some popular theories to the test but before they can render a verdict, an unusual sound lures them into the woods. Meanwhile, Bill, Austin and Jael head to Portland Oregon to investigate a strange light hovering over the haunted Willamette River. They attempt to replicate the lights by launching a variety of illuminated objects into the night sky and are surprised by the results.