When a battered woman provides the authorities with information about her husband's large scale drug processing operation, Walker must protect her from the husband's wrath.
Hunter and McCall's visit to a police psychiatrist regarding a work-related incident reveals a more intimate relationship years before.
Attwood brings the pillar from the secret city back to the United States so that Sloan, Ed and Tom can investigate its meaning. With its arrival come new dangers for all of them.
