What is the fine-grained topic of the following text: Water & Power: A California Heist unfolds like a real-life version of the 1974 film noir Chinatown and uncovers the ruthless exploits of California’s notorious water barons, who profit off the state’s resources while everyday citizens endure a debilitating water crisis. Only return the topic.
Exploitation of California's water resources by water barons during a water crisis