Lei Duo (Mary McDonnell) is the new boss of the Los Angeles Police Department's Serious Crime Unit. She has been vigorous and resolute since she took office. She hopes to turn the Serious Crime Unit into a warmer, more united and more humane place according to her own ideas. However, the first problem Lei Duo has to face is how to gain the trust of her subordinates with unique personalities, especially the agent named Provenza (GW Bailey), whose overly conceited personality has caused trouble for Lei Duo. At this juncture, a disgusting convenience store robbery occurred in the city. This is a great opportunity for Lei Duo to show her ability to gain the trust of her colleagues. Can she seize this once-in-a-lifetime opportunity? Will her subordinates obey her dispatch obediently?