In Search Of - Season 2

Did intelligent beings from outer space visit Earth thousands of years ago? From the age of the dinosaurs to ancient Egypt, from early cave drawings to continued mass sightings in the US, each episode gives historic depth to the questions, speculations, provocative controversies, first-hand accounts and grounded theories surrounding this age old debate.

Mass UFO sightings from the last 50 years fuel a mystery in this documentary series featuring eyewitness accounts, expert interviews and new evidence.

Though claims of extraterrestrial encounters have long been dismissed, many believe the existence of UFOs is not just likely, but a certainty.

A tense, filmic and high-octane drama-documentary series that brings to life the stories of people who have lived through paranormal experiences that defy explanation. Using a mixture of intimate first-hand testimony and grittily realistic drama, the audience is transported into a world turned upside down by extraordinary and terrifying events.

This immersive series follows the world's most magnificent creatures, capturing never-before-seen moments from the heartwarming to the outrageous.

The series heads to the very frontiers of space and science to produce the definitive television history of science fiction, told through its impact on cinema, television and literature, with the help of filmmakers, writers, actors, and graphic artists. Each episode will explore one of the enduring themes of science fiction: time travel; the exploration of space; robots and artificial intelligence; and aliens.

Infographics and archival footage deliver bite-size history lessons on scientific breakthroughs, social movements and world-changing discoveries.

TV's most-watched history series brings to life the compelling stories from our past that inform our understanding of the world today.

A chilling series in which survivors of a paranormal experience relive their harrowing encounter.

Horizon tells amazing science stories, unravels mysteries and reveals worlds you've never seen before.