New York City is in trouble Something strange is happening in Central Park, the green sanctuary in the heart of Manhattan. Dogs splash in fountains, ride skateboards, and act naughty all throughout the park. Their owners, their dog walkers, and even the park patrol can't stop the wild behavior. Is something in the park making the pups crazy? Ten-year-old Lilly Cook and her twin siblings, Fynn and Celia, remember the case that turned their parents into world famous veterinarians-with a little help from their kids, of course Discover how the Cook kids learn to think like animals and work with new friends to protect our environment, one destination at a time. Will they find the solution before all dogs are banned from Central Park forever?