Paranormal investigators get a chilling response from a dearly departed rock legend; a ghostly canine joins its former owner for a nighttime stroll; a man and his co-workers spot a gaggle of UFOs in the Louisiana bayou.

A man searches for answers after he spots a reptilian creature in Thailand; a baby has a terrifying encounter with a ghost; a war-torn ship yields a haunting message.

A paranormal presence follows an investigator home; a UFO plays chicken with a freighter; a family captures evidence of Bigfoot; the ghost of a small child runs through a Savannah, Ga., cemetery.

A Sasquatch chases a group of young Russians to their car; a mother's worst fears are confirmed when security cameras capture two entities in her new home; and mysterious sounds trumpet from the skies.

A man gets an unwelcome visitor in his new home; a man and his daughter take a walk in the devil's tramping ground; disappearing entities confuse a home's security system; plus, more paranormal footage from cameras around the world.

Ghost hunters spend the night with an evil spirit; playgrounds for the dead; colossal creature appears near the shore of an Irish lake.

Friends in Utah track down a Bigfoot spotted in the mountains; a total skeptic is attacked by a spirit at a haunted fort in England; ghostly passengers appear in a Hong Kong airport.

A famous monster washes up on a New York beach; parents catch ghosts haunting nurseries on baby monitors; a UFO saves a Russian town.

A home security camera captures a dog's scary encounter with a ghost; a strange creature is spotted deep within a cave in the Alps; people all over the globe witness UFOs during the daytime.

Friends test a local legend about a haunted bridge; a UFO is spotted from a plane window over California; a horrifying creature from the darkest corners of the internet is found in Oregon.

Ghostly patrons haunt pubs throughout the United Kingdom; a shadow creature stalks a police officer on an empty plane in Mexico City; a sea monster is spotted by multiple witnesses on the Thames.

A ghostly woman in white strolls along a dark highway; an underwater entity stalks a boat in a canal; and a gas station employee makes contact with a mysterious humanoid.

A ghost hunter communicates with trapped spirits inside a 19th-century farmhouse; hundreds of UFOs are spotted off the coast of Florida; and a motorcyclist in India has a close call with creepy entity.

A lake monster stalks a group of swimmers; a security guard confronts a terrifying shadow person in an empty stadium; a college student is tormented by a ghostly roommate; a Russian man goes on the hunt for a Yeti.

A man encounters a shadow creature in his bedroom; an unidentified light is spotted above Fairbanks, Alaska; a Detroit brewery is visited by an angelic entity.

Contact with an infamous gangster; a flying witch terrifies onlookers; a poltergeist torments a college student; and something is alive in the sewers.

A ghost hunter is pushed to the brink by a demonic jinn; a shadow person invades a home in the UK; a creepy doll haunts a suburban basement.

A tourist captures startling footage of a giant sea serpent in Alaska, an unsuspecting ghost hunter is assaulted by a vengeful spirit and a bipedal beast roams the hills alongside a California highway.

An Oregon man captures some of the best bigfoot footage ever; UFOs cluster over a Texas town; a Wales resident faces an especially active poltergeist.

UFOs hover over government property in Hawaii; the spirit of a little boy in a haunted cave; a crucifix moves on its own.

A couple spies multiple UFOs in the skies above Arizona; a poltergeist stalks a Florida family; a cryptid hunter gets up close and personal with a Bigfoot in North Carolina.

Called "The Ultimate Paranormal Experience," this series breaks ground by allowing viewers to tag along with the Tennessee Wraith Chasers during paranormal investigations. The TWC team -- Chris Smith, Steven "Doogie" McDougal, Scott Porter, Brannon Smith and Mike Goncalves -- heads to a different location each episode for a completely unfiltered ghost hunt. Viewers keep tabs on what's lurking around corners via on-location video feeds. With the added eyes and ears, there's no telling what might be uncovered.

Paranormal investigators Jason Hawes, Steve Gonsalves and Dave Tango are back for all-new otherworldly adventures in Travel Channel's paranormal reality TV series, "Ghost Nation." The paranormal pioneers respond to urgent calls from local investigators who have reached dead ends while trying to help homeowners deal with high-stakes hauntings. Using state-of-the-art technology, the guys embed themselves in communities across the country to conduct multi-day investigations in an effort to track down the sources of these hauntings and restore peace to both the living and the dead.

Morgan City, La., is experiencing a disconcerting spike in emergency calls related to encounters with ghosts from the bayou city's turbulent past. Police Chief James Blair calls upon a team of paranormal experts to investigate the city's rise in bizarre activity. The team is led by Lousiana native Jereme Leonard, former FBI agent Ben Hansen and psychic medium Sarah Lemos. With the help of local historian Diane Wiltz, the team digs into the area's haunted history and begins the crossing-over process for some of the spirits wreaking havoc on the small community. Learning that the hauntings have spread throughout the area, the team begins working with other police departments to get to the bottom of the ghostly infestation of St. Mary Parish.

In "Ghost Adventures," Zak Bagans and his team of paranormal investigators have visited hundreds of haunted locations both in America and abroad, interviewing locals about alleged hauntings before going face to face with supernatural entities. Along the way, Zak and company have provided answers and help for couples, families and individuals suffering the vengeance of spirits. "Aftershocks" follows up by having the series' most memorable characters recount how things were before Zak's "lockdown" investigation and how their lives have changed since. Are questions still left unanswered? In some cases, paranormal teams that have investigated specific locations after the "Ghost Adventures" team bring their own evidence and insight to the table.

The last thing first responders expect to experience on an emergency call is a paranormal encounter. But it's not as unusual as one might think. Each year an alarming number of 911 responders are forced to face their fears as they put themselves in danger to help the living. This first-person, drama/documentary presents terrifying true tales of such encounters, brought to life via reenactments and the perspectives of police officers, firefighters and paramedics who arrive on scene, then find themselves witnessing supernatural phenomena.

TV personality/executive producer Jack Osbourne teams with paranormal investigator Katrina Weidman on journeys to notorious haunted locations. Not only do these places have dark histories, but they are especially sinister and purported to be doorways to the spirit underworld. Each hourlong episode finds Osbourne and Weidman at a different site, examining unusual incidents while utilizing specialized technology and a network of experts to help document and uncover the truth. Among others, the investigations include Bobby Mackey's Music World in Kentucky, Eastern State Penitentiary in Pennsylvania, the Alaskan Hotel in Juneau, Ohio's Twin City Opera House, and New Orleans' infamous LaLaurie Mansion -- where Jack and Katrina become the only paranormal team to ever examine the disturbing hauntings within its walls.

"The Alaska Triangle" is a Travel Channel series that explores an area in Alaska known for unusual activity, including mysterious disappearances, sightings of strange creatures, lights in the sky, and encounters with ghosts. Some experts speculate that ley lines or electromagnetic anomalies may be causing these bizarre occurrences within the Triangle. The paranormal series investigates enduring mysteries, such as the disappearance of the Douglas C-54 Skymaster in 1950. The Douglas vanished en route from Alaska to Montana, with 44 people aboard, and no trace of the aircraft, its crew or its passengers has ever been found. Another mystery involves a Bigfoot creature that is rumored to have caused a once thriving coastal town to become deserted. In another episode, an eyewitness shares startling video evidence of extraterrestrial activity in Fairbanks, Alaska, while a UFO hunter flies over Alaska's highest mountain in search of a secret underground alien base.

Families tormented by unusual activity in their homes -- with the added stress that the spirits may be their own late family members -- turn to two of America's leading paranormal investigators for help. Hesitant to leave their properties but seemingly out of all other options, the scared families meet with Amy Bruni and Adam Berry, and each episode of "Kindred Spirits" follows the fearless duo as they gather evidence, guide the spirits into the light, and restore peace to the home. Bruni and Berry got their start on Syfy's groundbreaking series "Ghost Hunters," which defined a new genre in supernatural storytelling on television.