TV Show100%

Lost Grail with Alice Roberts

Documentary

Join Professor Alice Roberts on an adventure across Britain as she decodes the truth behind its Holy Grail legends, linking Arthurian lore, sacred relics and the Knights Templar.

Feb 3, 20261 seasons3 episodesReturning SeriesEN

Start Watching

Cast spotlight

Jump into full cast pages for bio, socials, and recent work.

Alice Roberts

Self

View profile

Seasons

Season 1

3 episodes

Premiered Feb 3, 2026

Episodes

1–3 of 3

Ep 1

In the Shadow of the Tor

Feb 3, 2026

44m

Professor Alice Roberts begins her quest on Britain's windswept south coast, investigating the biblical legend of Joseph of Arimathea, a tale woven deep into English folklore.

Ep 2

Knights of the Grail

Feb 10, 2026

44m

Professor Alice Roberts continues her Grail quest by unearthing the legendary knights entwined with Britain's sacred past.

No preview

Ep 3

The Rosslyn Chapel Mystery

Feb 17, 2026

44m

Alice heads to Scotland in pursuit of one of the most tantalising threads in Grail lore: the claim that the Knights Templar secretly buried the Holy Grail beneath Rosslyn Chapel.