What unexplainable phenomena are explored in Episode 7 of Season 1 of the “Files of Unexplainable Phenomena” documentary series?

In Episode 7 of Season 1 of the "Files of Unexplainable Phenomena" documentary series, various unexplainable phenomena are explored. These include encounters with aliens in Pascagoula, ghost sightings at Myrtles Plantation, mysterious disappearances in Yuba County, UFO conspiracies involving the government, haunting at Lanier Lake, mysteries of Shasta Mountain, strange rain in Washington, and the discovery of severed feet on the shores of Salish Sea.