`The truth is out there,' and FBI agents Scully and Mulder seek it in this sci-fi phenomenon about their quest to explain the seemingly unexplainable. Their strange cases include UFO sightings, alien abductions and just about anything else paranormal. This release collects every episode from season four of The X-Files.

In Season 3 of this supernatural drama, Nick (David Giuntoli) deals with some surprising aftereffects of his zombie attack-and the outcome is more positive than he could have anticipated. Meanwhile, he works to rebuild his relationship with Juliette (Bitsie Tulloch), whose newfound knowledge of Nick's world leads to her being increasingly involved in his Grimm work. Monroe (Silas Weir Mitchell) asks Rosalee (Bree Turner) to marry him, but their impending nuptials raise concerns among their families about the appropriateness of a mixed-Wesen wedding, especially one that has a Grimm as best man. Meanwhile, Adalind (Claire Coffee) continues her fight to regain her powers, but with a baby on the way and an all-out war brewing between her and the royal family, she may have gotten in over her head.