Such Sweet Sorrow. Tonga once again tries capturing Kimba, this time through the use of tanks disguised as Hippos. Her plan soon fails, thanks to Roger, and she flees. When Pompus is taken captive by Tonga, Roger sets out alone to save him, but he is also captured. Tonga prepares for another invasion, while Kimba prepares the animals for war. Meanwhile, Roger becomes convinced that Tonga is Mary, and tries to think of a way to make her remember him.