Human: The World Within

Defend

Season 1, Episode 4 of 6

Look at a nature survivalist, rancher twins, a doctor who survived Ebola and the recipient of a cutting-edge cancer therapy to uncover the wildly advanced biology that keeps us alive against all odds.

Previously Aired

Day
Time
Channel
5/19/2021
10 p.m.
5/20/2021
3 a.m.
5/21/2021
3 p.m.
5/23/2021
8 a.m.
3/2/2022
2 p.m.
8/28/2023
1 p.m.
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