In May 2015, Iowa State Trooper Tracy Bohlen was patrolling a busy highway when a truck ahead of him stopped suddenly. A teenage boy inside the truck yelled for help. The boy's father, who had been driving a truck, was suffering a heart attack. Trooper Bohlen knew that the man needed help right away. He used the skills he had learned during his training to perform R on the sick driver in the middle of the road! 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 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.