Ancient Aliens backdrop

Ancient Aliens S21E15 — Britain's UFO Files

8.3

Ancient Aliens•Season 21•Episode 15

Britain's UFO Files

8.3/10 · 27 votesOct 16, 202560 min

Ranked #3 of 17 in Season 21•+0.5 vs season avg

From ancient sites like Stonehenge to the crop circle phenomenon and modern-day UFO sightings, Great Britain is a place of mysteries; exploring if throughout history this island has been a destination for extraterrestrial visitors.

Previous episodeE14 · Aliens in Our Midst Next episodeE16 · Mysteries of the Norse Gods

Seasons22

All 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22

Season 21 Episodes17

The Top Ten Extraordinary Discoveries still

The Top Ten Extraordinary Discoveries

The Top Ten Mysterious Monoliths still

The Top Ten Mysterious Monoliths

The Top Ten UFO Crashes still

The Top Ten UFO Crashes

The Top Ten Unexplained Technologies still

The Top Ten Unexplained Technologies

The Top Ten Secret Projects still

The Top Ten Secret Projects

The Top Ten Mysterious Mountains still

The Top Ten Mysterious Mountains

Mysteries of the Aztecs still

Mysteries of the Aztecs

The Glowing Orb Phenomenon still

The Glowing Orb Phenomenon

The Legacy of J. Allen Hynek still

The Legacy of J. Allen Hynek

The Volcano Factor still

The Volcano Factor

The Birdman Mystery still

The Birdman Mystery

The Abduction Files still

The Abduction Files

The Giants still

The Giants

Aliens in Our Midst still

Aliens in Our Midst

Britain's UFO Files still

E15 8.3Now viewing

Britain's UFO Files

Mysteries of the Norse Gods still

Mysteries of the Norse Gods

Secrets of Japan still

Secrets of Japan

Cast16

Robert Clotworthy

Robert Clotworthy

Narrator (voice)

Giorgio A. Tsoukalos

Giorgio A. Tsoukalos

Self

Ariel Bar Tzadok

Ariel Bar Tzadok

Self

Jonathan Young

Jonathan Young

Self

David Childress

David Childress

Self

Erich von Däniken

Erich von Däniken

Self

Linda Moulton Howe

Linda Moulton Howe

Self

David Wilcock

David Wilcock

Self

George Noory

George Noory

Self

Philip Coppens

Philip Coppens

Self

Nick Pope

Nick Pope

Self

Mike Bara

Mike Bara

Self

Discussion

0 comments

Join the conversation

Share your take and reply to other fans.

No comments yet

Be the first to share your thoughts on this episode.

Episode Summary

"Britain's UFO Files" is episode 15 of Ancient Aliens season 21. It scored 8.3/10 from 27 votes, ranking #3 of 17 episodes this season (season average 7.8). It aired on October 16, 2025.

Next: E16 · Mysteries of the Norse Gods Best of Season 21