Jungle Emperor Leo (1997) on Netflix

Plot summary

Leo is an adult lion whose mate, Lyra, has given birth to twin cubs, Lune and Lukio. In a city, a poacher named Ham Egg tries to sell a stone he discovered in the Bajalu Jungle, and jewelers turn him away. Men in black suits bring him to two scientists, Dr. Plus and Dr. Minus, who head an organization that wants the stone, called the Moonlight Stone, as a power source against an energy crisis. They put Ham Egg in charge of the search for its source and send Dr. Moustache and Mr. Lemonade with him. In the jungle, Dr. Moustache argues with Ham Egg's men about respect for nature, while Mr. Lemonade keeps a journal. Lune grows curious about the human world, and Leo faces a plague among the animals and dissent from Pagoola, the elephant leader.