Detective Rita Rizzoli is accustomed to donning costumes and going undercover to nail crooks. But she'll be required to use all of her get-ups and more when a major cocaine ring is suspected of turning out a potent new strain of the drug, called "Fatal Beauty." With the help of her partner and a former bodyguard for a local cartel, Rita will do whatever it takes to find out who's dealing Fatal Beauty and stop them.

A troubled Vietnam vet snaps during a training exercise at a survivalist-type military camp and thinks he's back in Vietnam. He kills several of the staff members who he thinks are Vietcong. The other participants set out to track him down and capture him before he hurts or kills anyone else. However, the camp's owner, who knows he'll be in trouble if word of this incident gets out, has no intention of capturing the man; he plans on killing him.