The Adventures of Rin Tin Tin

Rin Tin Tin and the Shifting Sands (1x15)

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Rin Tin Tin, Rusty, and an escaped prisoner, who claims he is being framed for murder, are lost in a severe dust storm in the middle of the desert. To make matters worse, they are nearly out of water, and Rinty is suffering from a venomous snake bite.