"Flush" is a children's novel by Carl Hiaasen that follows a young boy named Noah Underwood. Noah is determined to expose a corrupt casino boat owner, Dusty Muleman, who is illegally dumping waste into the water. This environmental crime threatens the local ecosystem and impacts the lives of those living by the coast, including Noah's family. Motivated by a sense of justice, Noah decides to take matters into his own hands to save the waters of Florida.
The story unfolds through Noah's adventures, where he enlists the help of his sister and friends. Together, they gather evidence of the illicit activities and face various challenges, including evading the casino's security. The narrative highlights themes of environmentalism, family loyalty, and the courage to stand up against wrongdoing. Hiaasen blends humor with a serious message about protecting nature and the importance of fighting for what is right.