One cold winter's day, while Dave and his best friend Bruce were walking in a dangerous part of the mountains, Dave fell. Bruce knew that his friend was badly injured and that he had to do something fast. He was determined to save his friend, so he got away to find the quickest way down the mountain. While he was running as fast as his big muscles would carry him, Bruce said to himself, "Don't give up, Dave, I'll find someone to rescue you.'