The worst episodes of Prehistoric Planet

Ranked by viewer rating, lows first. Lit marks on the season rail place this list across the run. Vote on a placement to back it or contest it.

  1. 01

    S03E03 · November 26, 2025 · 41m

    Desert Lands7.0

    With much of the planet's water supply frozen, rock-climbing sloths and marsupial lions must find a way to withstand barren landscapes.

  2. 02

    S03E04 · November 26, 2025 · 40m

    Grass Lands7.1

    Giant herd animals thrive with the expansion of the grasslands, dominating the plains—but fearsome hunters shadow their every move.

  3. 03

    S03E05 · November 26, 2025 · 41m

    The Big Melt7.3

    Rising temperatures mean every habitat on the planet is transforming, and for the Goliaths of the Ice Age, the world as they know it is ending.

  4. 04

    S03E02 · November 26, 2025 · 36m

    New Lands7.5

    As sea levels drop and continents shift, animals begin migrating to unknown territories full of new possibilities—and new threats.

  5. 05

    S02E02 · May 23, 2023 · 46m

    Badlands7.6

    Trudging through a scorching desert, two young Tarchia find relief at an oasis and encounter an adult twice their size, ready to lay claim.

  6. 06

    S01E04 · May 26, 2022 · 42m

    Ice Worlds7.6

    Within the snow-covered forest, a tense standoff develops between ancient rivals, Pachyrhinosaurus and Nanuqsaurus.

  7. 07

    S03E01 · November 26, 2025 · 43m

    The Big Freeze7.6

    In a world covered in ice, woolly mammoths and saber-toothed cats fight to survive the coldest temperatures in millions of years.

  8. 08

    S01E05 · May 27, 2022 · 42m

    Forests7.6

    A journey through an underground cave in North America turns perilous when a young Triceratops is separated from its mother.

  9. 09

    S01E02 · May 24, 2022 · 41m

    Deserts7.7

    Above the deserts of North Africa, aerial combat ensues as male Barbaridactylus pterosaurs fight for the attention of females below.

  10. 10

    S02E01 · May 22, 2023 · 42m

    Islands7.7

    On a small island, a monumental display takes place as the giant Hatzegopteryx reveals his gentler side to woo a mate.

  11. 11

    S01E03 · May 25, 2022 · 40m

    Freshwater7.8

    With its feathered body and duck bill, the eight-ton Deinocheirus wades through an Asian wetland in search of relief from pesky biting flies.

  12. 12

    S01E01 · May 23, 2022 · 43m

    Coasts7.9

    A pregnant Tuarangisaurus is in distress—and her young calf can sense it—as she travels waters that are home to the ocean's deadliest predators.

  13. 13

    S02E05 · May 26, 2023 · 39m

    North America7.9

    Not many can intimidate North America's top predator, T. rex, whose size and bite are a deadly combo—except for a giant winged foe.

  14. 14

    S02E04 · May 25, 2023 · 38m

    Oceans8.0

    Deep beneath the water's surface, the world's largest predator—the Mosasaurus—lies in wait to ambush unsuspecting prey.

  15. 15

    S02E03 · May 24, 2023 · 39m

    Swamps8.0

    In a drought-stricken basin where much has perished, an old Pachycephalosaurus bull defends his leadership against a young challenger.

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