The Legend of Tarzan

Tarzan and the Poisoned River (1) (1x7)

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Tantor falls ill after drinking from the river and the Professor concludes the water must be contaminated. While Terk tends to the sick Tantor, Tarzan, Jane and the Professor begin a perilous journey upriver to find the source of the contamination. Things go from bad to worse when the three are captured by a tribe who accuse them of poisoning the river.