Dismal Swamp appears to be a dark and creepy forest next to a swamp, hence its name. It is shown to be inhabited by mostly predators.
After Timon gets annoyed by running into Pumbaa for the third time when he wants to be alone, Pumbaa decides to go to Dismal Swamp so that he and Timon could never run into each other again. Later that night, while Timon continues writing his best-selling book, he begins to feel lonely and regrets sending Pumbaa away.
While Timon searches for Pumbaa at Dismal Swamp, he gets stalked a cheetah, a bear, a crocodile, a snake, a wolf, a bat, and a T-rex. While Timon tries to sneak away from them, he drops his hat and feather on the ground. When the predators are about to eat Timon, Pumbaa comes to his friend’s rescue and scares away the animals.
Pumbaa shows Timon that he followed his trail, giving him back the hat and feather. The meerkat apologizes to Pumbaa for what he’s done earlier and tells him that he can sometimes be a bigger Mook than the warthog. Timon then decides to give up being a writer and stay with Pumbaa, saying that nothing will ever come between them again.
Suddenly, an ostrich appears and finds one of its tail feathers, which Timon used as a pen, lying on the ground. When it retrieves it, Timon blames it on Pumbaa. This makes the ostrich attack the warthog while Timon states that he will probably hate himself for what he just did.