It's budget-cutting time at CONTROL and 99, who has less seniority, is temporarily laid off. Rather than be idle, she manages to find a job at a stamp redemption center (the late 1960s was the heyday of S & H Green Stamps). However, the redemption center is a KAOS munitions depot that CONTROL has been actively looking for. With most of the CONTROL agents away from town on a false lead, KAOS uses the opportunity to distribute its new weapon to its agents: a stereophonic gun (two guns mounted left-right on a common trigger base). Will 99 be able to alert CONTROL in time?
