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Bear Grylls and Joseph Gordon-Levitt begin their trek by jumping into crocodile-infested waters.

Appearing:Bear Grylls
Tags: running wild with bear grylls, bear grylls, Joseph Gordon Levitt, Joseph Gordon-Levitt, jgl, Kenya, helicopter, crocodiles, season premiere, running wild season 4, bear grylls season 4, Season 4 Premiere
S4 E12 minHighlightReality and Game ShowPrimetime