Old Mowgli tells the tale of the promise made in his youth to kill Shere Khan the tiger, who gets more dangerous by the day as he is consumed by blood lust. Every summer, the sun burns the savannah and dries up the rivers. But this year, water is especially hard to come by and the animals must endure a dreadful thirst. Thankfully, a marsh forms in the empty riverbed and Hathi the elephant decrees a water truce. With all hunting forbidden, every animal is safe to come and quench their thirst. Even Shere Khan is bound to this truce. But the bloodthirsty tiger is driven only by his vendetta against Mowgli. Not only does he wish the young man's death, but also to bring an end to his illusions...