"Firestorm" is the first book of the Caretaker Trilogy, a series of science fiction thrillers with an ecological theme. "Firestorm" was the first book ever endorsed by Greenpeace and was praised by critics for its combination of entertainment value and environmental message, garnering an American Library Association (ALA) Best Book citation, a starred review from "Publishers Weekly", and a favorable review by "The New York Times Book Review". The story focuses on Jack Danielson, a teenager sent back from the future to save the world’s oceans.