S14E11
Investigate 75 million years of credible evidence suggesting aliens have visited EarthS01E04
A bride and her caterer are accused of drugging the wedding guestsS01E05
A man interrupts his crime to make a pizzaS01E04
The world's worst engineering disastersS07E06
A client catches Les off-guardS10E25
The team heads to Worksop in NottinghamshireS01E03
A UFO crash in 1960s Nova ScotiaS01E17
Phenomenon spotted as far back as the time of Alexander the GreatS01E09
The hunt for an alleged UFO that crashed in TexasS01E07
Claims that alien spacecraft are located at secret facilities in the USS01E08
Concentrations of UAP sightingsS01E06
What UFOs might see from their own perspectiveS01E05
How, apparently, UFO sightings are at an all-time highS03E08
The team explores possible proof of a sea monsterS03E09
A flying saucer-shaped object spotted near the Panama CanalS05E17
The mysterious Arizona desert cypherS05E18
Unexplained shapes in the deserts of Genghis KhanS05E19
Documentary series exploring anomalies appearing on satellite imagesS03E09
The Voynich manuscriptS03E11
The kidnapping of famed aviator Charles Lindbergh's son in 1932S03E12
The Chicago Tylenol MurdersS01E08
How ancient cultures provoked fear with curses and certain objectsS02E04
The Battle of Gergovia, fought in 52BCS04E08
Mysterious stories linked to the era of the Second World WarS04E09
Tales of monstrous creatures lurking in the shadowsS02E08
Featuring a steam-powered gunS01E03
A UFO crash in 1960s Nova ScotiaS01E17
Phenomenon spotted as far back as the time of Alexander the Great