When a container of illegal weapons is broken into, Josh and Dom race to save the life of a security guard, who has a bomb strapped to her body, and attempt to find the men responsible.
Lawson, Michael and Shannon deal with a disgruntled worker, who is holding his boss against his will.
Rush follows the lives of members of the prestigious Tactical Response team (TR), which is based on the real life Victoria Police Critical Incident Response Team, a highly mobile unit that fills the operational gap between general duties police and the SWAT-like Special Operations Group. The team is seen responding to unhappy incidents such as carjackings, sleepings and armed offences. Rush focuses on the TR officers, their intelligence officers, Leon, Audrey and Inspector Kerry Vincent, head of the TR administration. It explores both the working and personal lives of the team.