Nash and Joe offer freedom to gangland money launderer Carlos Casas if he will testify against others.

It's Christmas Eve, and Nash and his fellow cops are trapped at the SIU as they wrap up a murder investigation and a prostitution case. Joe borrows Nash's 'Cuda to get it detailed and freaks out when the car is stolen; Nash's personal gifts to Lisa and Whitney get mixed-up; personal crises abound as the cops deal with the Christmas holiday.