Call It Paradise. Chicago finest are left to work in treacherous conditions when a severe ice storm forces its residents into a citywide lockdown.
Jane and Maura are called out to the BCU body farm when a murder victim is found buried among the research corpses; Angela keeps secrets from Jane.
A friend from Bull's past enlists his services to help convince a jury that a domestic abuse survivor who shot her husband in his sleep is not guilty of murder because she feared for her life and the life of her unborn child.
After a baby is found on a playground, Detectives Stabler and Benson look for the child's caregiver.