Ghost Adventures: Series 4 (2011)

Zak Bagans, Aaron Goodwin, Billy Tolley, and Jay Wasley investigate the scariest, most notorious, haunted places in the world...The most intense, chilling, intimidating paranormal encounters are revealed...Rolling Hills Asylum has had as many roles as it has characters. A Satan-worshipping nurse, a gentle giant and an alleged child molester all at one time or another roamed its halls...The crew explores the iron giant known as the Hornet, a 1940s vintage aircraft carrier docked in the San Francisco Bay. Visitors report seeing apparitions of the crew along with bloodstains that simply disappear at will...