Season 1

    Journey with Kirk Johnson to Yellowstone, where wolves, grizzlies, beavers and Great Gray owls survive one of the greatest seasonal changes on the planet. As the temperature swings 140 degrees, cameras capture how the animals cope.

    Video thumbnail: Great Yellowstone Thaw Episode 3Passport

    Great Yellowstone Thaw

    Episode 3

    Soaring temperatures bring wildfires, and something’s forced the beavers to leave home.

    Episode 3

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    Great Yellowstone Thaw

    Episode 2

    Spring is here and Yellowstone is bursting into life, but the thaw is just beginning.

    Episode 2

    Video thumbnail: Great Yellowstone Thaw Episode 1Passport

    Great Yellowstone Thaw

    Episode 1

    Follow the dramatic ups and downs as the wildlife families brave a brutal winter.

    Episode 1