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All Seasons

Season 1

  • S01E01 Northumberland

    • November 19, 2016
    • Channel 4

    In Northumberland, Tori and Alex investigate the tragic story of a French fishing trawler that was wrecked in 1913, and discover the ancient community that thrived in the Middle Ages in what is now one of the north-east's top tourist destinations.

  • S01E02 Merseyside

    • November 26, 2016
    • Channel 4

    Every day, on a sandy beach or a rocky foreshore, fascinating evidence of Britain's island history appears and disappears as the tide rolls in and rolls back out again. Tori Herridge and Alex Langlands reveal stories from our extraordinary maritime, industrial and natural history. In this episode, Tori and Alex explore Lancashire's coastal archaeology. They investigate a beach full of building rubble from World War II, track down Liverpool's own version of the Whisky Galore story, and find evidence of people and animals dating back 7000 years.

  • S01E03 Essex

    • December 3, 2016
    • Channel 4

    Every day, on a sandy beach or a rocky foreshore, fascinating evidence of Britain's island history appears and disappears as the tide rolls in and rolls back out again. Tori Herridge and Alex Langlands reveal stories from our extraordinary maritime, industrial and natural history. In Essex, Tori and Alex investigate the earthwork remains of a fort dating to the time when Henry VIII took England out of the European Catholic union. They pay their respects to some Thames sailing barges that are now sunk in estuary mud but which were once the glory of the east coast. And they find a First World War German U-boat stranded in a tiny creek.

Season 2

  • S02E01 East Sussex

    • February 14, 2018
    • Channel 4

    Tori explores an 18th-century shipwreck and discovers a prehistoric well shaft. Plus: the harbour that took 63 years to build but only worked for four months.

  • S02E02 Dorset

    • February 24, 2018
    • Channel 4

    In Dorset, Tori and the team reveal the story of the world's first aircraft carriers. They also discover how this coastline played a vital role in D-Day and search for a unique and huge Iron Age monument that can only be seen - sometimes - for a few hours a year.

  • S02E03 The Clyde

    • March 3, 2018
    • Channel 4

    Tori examines various attempts to make the River Clyde deeper to get ships into the heart of Glasgow, and investigates the role of an odd-shaped vessel in a boat graveyard

  • S02E04 The Severn

    • March 17, 2018
    • Channel 4

    In this episode Tori visits the Severn Estuary and investigates a mysterious medieval ruin on a bleak island. Who built it, and why? Could it have been a religious site? Was it an early lighthouse or beacon? Further along the coast she visits the site of the medieval village of Sudbrook, which simply disappeared into the sea. She finds out how important the ferry crossing at Aust was during the 20th century and is shown a photo of a famous passenger who used it: Bob Dylan. And she investigates the story behind the very first attempt to build a tunnel underneath the Severn. At the moment, all this archaeology is available to anyone who cares to go looking for it, but rising sea levels and coastal erosion mean it won't be very long before it's all swept away. Britain at Low Tide captures a vanishing past for us all to see.

  • S02E05 East Yorkshire

    • March 24, 2018
    • Channel 4

    In East Yorkshire, Tori uncovers the story behind a dramatic night when a fishing trawler went wildly off course in the North Sea. The massive remains of a World War I fort lead Tori to tales of love in a Yorkshire village. And she learns the strange fate of two ships that were built in Hull but ended up on top of a mountain in Peru.

  • S02E06 Fife

    • March 31, 2018
    • Channel 4

    In Fife, Tori explores a wreck near the scene of one of Britain's worst ever railway disasters and examines stone carvings left in caves by one of Scotland's oldest tribes.

Season 3

  • S03E01 Whitstable

    • September 14, 2019
    • Channel 4

    Palaeobiologist Dr Tori Herridge and her team of experts explore the north coast of Kent around Whitstable. The programme takes a look at the excavation of one of the most significant shipwreck discoveries of recent times, the origins of a strange sandbar, and a forgotten military base in an unusual location which proved pivotal in deciding the outcome of the First World War. Plus, a look at how rising sea levels and coastal erosion mean that a great deal of archaeology may be lost before it can be documented.

  • S03E02 Firth of Forth

    • September 21, 2019
    • Channel 4

    Palaeobiologist Tori Herridge and her team investigate the coastline of Scotland, uncovering archaeological finds that have been left behind by the tide in the inner reaches of the Firth of Forth. Tori also uncovers the story behind a long-forgotten harbour that is regarded as the birthplace of the Scottish whisky industry. Plus, why a 16th-century entrepreneur decided to tunnel under the sea and how a 19th-century pier proved vital to the continuing success of cattle farmers across central Scotland.

  • S03E03 Solway Firth

    • September 28, 2019
    • Channel 4

    Dr Tori Herridge and team recount a tragic mining disaster that took place four miles out to sea, and find a huge oval-shaped swimming pool off the coast