Don ventures into a remote jungle to come face-to-face with a deadly curse. An ancient civilization once ruled what is now eastern Honduras from a secret city. Don hopes to uncover clues about who they were and why such lethal dangers still protect it.

Don inspects ancient carvings in a British cave. He explores the alleged "witches' marks" ties to the supernatural as he visits holy wells, dives into a mysterious shipwreck and meets modern-day Druids to see if a bloody battle ended with a deadly curse.

Don investigates reports of bizarre cult activity in the Louisiana bayou. He joins in an exorcism to ward off evil, seeks out ghostly orbs said to guard long-lost treasures and hunts for a demonic beast in the murky wetlands near New Orleans.

Don investigates an ancient cult by undergoing its most-terrifying ritual in Peru. He finds evidence of a supernatural war in remote caves and uncovers clues about bloody human sacrifices, revealing the truth behind a dangerous and secretive religion.

Don gains access to the mysterious diary of a former SS officer. Its dark clues lead him to a perilous cave built to hide supernatural relics and a crypt where the Nazis held occult ceremonies in an attempt to conquer the world through black magic.

Don visits a sleepy Virginia town where paranormal activity is spiking and finds a connection to the Lost Colony of Roanoke. He retraces the path of a mysterious relic as he explores whether dark magic from the Old World doomed settlers in the New World.

Don digs deep into the dark mysteries of voodoo. He gains access to a blood sacrifice and learns the terrifying truth about zombies in Haiti. Back in New Orleans, he witnesses a top-secret ritual where a voodoo priest is possessed by the god of death.

New evidence of vampiric activity takes Don to Bulgaria, where he joins a vampire hunt and searches for demonic spirits in a dangerous mountain cave. In Hungary he visits the subterranean prison that once held the world's most-famous vampire -- Dracula.