An exploration of the world's most fascinating, strange and inexplicable mysteries. Compelling contributions from scientists, historians, and witnesses as they seek to shed light on how the impossible can happen.

When an Army ranger goes missing after returning from deployment, Magnum learns of the traumatic news he received upon arriving home and must find him before survivor's guilt consumes him. Also, Higgins and Ethan solve the case of a missing engagement ring while on a mini-break, and Katsumoto tries spending quality time with his teenage son.

Aspiring magicians are invited to perform their best trick to try and fool the world-famous team of Penn & Teller, who will get to see the trick only once and have to immediately try to work it out. Anyone who succeeds wins the right to perform with Penn & Teller in their celebrated show at the Rio Hotel & Casino in Las Vegas. The live studio audience and the TV audience watch along with Penn & Teller as they try to figure out the secrets. The magicians featured in the episode include Sanjeev Vinodh, Doc Dixon, David Merlin and Jorg Alexander.

 

Guy and Hunter Fieri combine cooking at home and restaurant food; the menu includes a stromboli from Wyoming and seafood stew from a classic Georgia diner.

An early winter storm turns McKinley Creek into a raging torrent. Unwilling to call it quits, Dustin and his crew prepare for their toughest battle yet. At the trifecta, Fred's worst fears come true as the walls of his dive hole come crashing down on him.

Erin tries not to feel overpowered as her new boss shadows her at work just as she's trying to get a nervous eye-witness to reveal the identity of who shot her boyfriend. Also, the serial killer who previously held Danny and Baez hostage resurfaces, and when Jaime arrests an intrusive reporter who appears at a series of store lootings, it leads to a standoff between Frank and the Attorney General over the press' First Amendment rights.

In the 20th century, pioneering scientists, journalists and investigators defied convention and began documenting UFOs. Now, with incredible new UFO accounts coming to light, will their work finally culminate in undeniable proof of extraterrestrial visitation?

Rob, Chanel and Steelo enter the Bladezone, discuss what it's like being from Cornhole Country and warn viewers not to hire the Break Your S*** Moving Co.

Rob, Chanel, and Steelo look into some "Active Investigations," head "Back to the Trees," and meet some "Military Grade Moms."

Guests include Amanda Seyfried, Omar Sy and musical guest Lil Durk ft. 6Lack. 

Ghostly guests attack a woman, a lake monster surfaces in Sweden, and more.

The Rangers intercept a mysterious message from outer space and Zayto is desperate to know if it was sent from his home planet. Unable to decipher it and losing hope, he remembers another important message from the past.