Probing Wales' most mysterious mysteries from UFOs to monstrous beasts, the Unexplainers are here to prove that truth is stranger than fiction. The truth is out there, but why not check Wales first?In 1977 a group of children reportedly saw a massive UFO lurking in the woods behind their school playground and for the first time in his life, John wants to go to school and learn the truth. John believes there's evidence floating in a local sewage works and his theories grow wilder until a night spent on an abandoned RAF base leads to the pair being totally out of their depth. When John discovers a UFO could have crashed on the Berwyn Mountain range in north Wales their mission takes a whole new twist. A tip off from a local farmer see the pair embark on a journey of a lifetime which quickly becomes more than they bargained for.