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Three inspiring runners with personal challenges decide to run a brutal obstacle course.
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A widowed mother prepares to run a Tough Mudder course to honor her husband’s memory.
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A young woman with Downs Syndrome inspires her father to run a Tough Mudder to deepen their bond.
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After his transition, a young man uses Tough Mudder to get closer to his father.
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The runners prepare themselves mentally and physically for the ultimate challenge.
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An in-depth look at the personal challenges, heartbreaks, and triumphs of three teams of Tough Mudder participants.