When a crowded passenger train crashed near Philadelphia, Pennsylvania, the city's police officers were among the first to respond. As the cops ran toward the wreckage, they heard screams for help coming from inside the train. The brave city cops climbed over the debris and kicked out the train's windows to reach the trapped passengers and pull them to safety. Dramatic, true stories will keep readers turning the pages as they learn about how these skilled police responders stay calm, think quickly, and act fast to address serious situations in which people or animals are lost or in danger. In addition, readers will go behind the scenes to see how these everyday heroes train for a wide variety of emergency rescues, so that they are ready to help day or night.