During a routine cell extraction Dom and Stella are caught in a prison siege. As Shannon negotiates with the ringleader, she slips up admitting Dom and Stella are inside. When the situation escalates Lawson sends in Josh and the riot police.

Meanwhile an accident throws Kerry a massive curve ball.

When teenagers blow up a series of parking pay stations, TR races to prevent them killing themselves and innocent bystanders.

Stella's future in Tactical Response is threatened when she becomes involved in an illegal car race. Kerry faces the coronial inquest into the cyclist's death. Later, Boyd visits Kerry at home with a peace offering and Dom finds a creative solution to an unusual situation at a strip club where an out of control father demands to see his daughter.

When a taxi driver assaults Shannon, Tactical Response links the incident to a spate of attacks against female passengers. As Tactical Response searches for the driver, Josh struggles to contain his anger. Tactical Response responds to a disturbance at a swinger's party only to discover the gatecrasher is a disabled woman. Meanwhile Lawson's love life takes a turn for the worse… or does it? He offers Shannon his spare room — will she shack up with her ex?

Lawson and Josh come to blows when Lawson discovers Josh's relationship with Shannon. Meanwhile, Tactical Response tracks an escaped criminal who Josh believes has been wrongly imprisoned. Lawson tries to locate an elderly couple who were seen scoring drugs and have left suicide notes for their children.