The final act of The Twits turns the children’s daring investigation into a chaotic showdown. After the city’s liquid‑hot‑dog flood is exposed, Beesha‑the‑older‑sister records Mr. and Mrs. Twit’s boastful confession and turns the footage over to the news. Their admission sends the couple to jail, freeing the children to break into the Twits’ dilapidated amusement‑park house and search for the key that unlocks the cage holding the stolen Muggle‑Wumps.
With the key finally in hand, Beesha and Bubsy rescue the bewildered creatures and learn, through the animals’ mournful cries, that the Twits had been using the Muggle‑Wumps’ tears as a bizarre power source for Twitlandia. The children’s triumph is short‑lived, however, because the Twits, now oddly elected mayor after a poisoned‑cake scandal knocks the former mayor out of office, return to the park to reclaim what they have lost.
At the inauguration ceremony the Sweet‑Toed Toad intervenes, revealing the old fairy‑tale rule that a kiss on its toe swaps a person’s nature. The Twits, forced into their opposite selves, blurt out the truth: they had squandered every cent of the public’s donations on fireworks, not on rebuilding the city. Their confession triggers a fireworks display that ignites the shoddy attractions, reducing Twitlandia to ash.
Revenge‑hungry but still playful, Beesha and her friends slip into the Twits’ house, turn everything upside‑down and coat the villains’ heads with invisible glue. When the bewildered couple tries to stand on their heads to “right” the world, they become stuck to the floor, immobilised and humiliated. Yet, in a brief moment of compassion, the children decide to free the Twits rather than let them shrink away. The act of forgiveness costs them their ability to understand the Muggle‑Wumps any longer, underscoring the film’s message that empathy is a two‑way street.
The Twits, now free, attempt to attack the trio, but they are whisked away on a cluster of balloons that tumble across the sky and crash in Loompaland, the magical realm from which the Muggle‑Wumps were taken. Their fate hints that the chaos they sow will finally catch up with them.
In the aftermath, Mr. Napkin restores the orphanage to its original spot, the Muggle‑Wumps sell their tear‑derived “fuel” to a multinational corporation, and the city of Triperot revives as tourists return to the newly refilled Tripe Lake. Beesha is celebrated for her bravery, and the children, now part of a larger, chosen family, look toward a brighter future—while the Twits drift endlessly, a poetic reminder that cruelty eventually floats away on its own.