At their ten-year high school reunion, they realized they all had something in common: crime. Cassidy covered it, Nicole investigated it, and Allison prosecuted it. At the time, Nicole was working for the Denver FBI field office, but not long afterward she was transferred to Portland. At Allison's suggestion the three women met for dinner, and a friendship began. They had half-jokingly christened themselves the Triple Threat Club in honor of the Triple Threat Chocolate Cake they had shared that day.