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 a baby is abducted Lawson races to find the kidnappers before the child's grandfather, a known criminal figure, finds them first. Meanwhile, a man threatens to jump from an apartment building after his girlfriend goes missing.

Meanwhile Melbourne’s water supply is contaminated by a woman who believes fluoride in the water has killed her husband, and Michael’s faith is tested when he loses a large sum of money while swimming with two underage girls.