After rescuing two children, Josh's rage spills onto their father, who may have attempted to kill them. The new inspector challenges Josh's position on the team

Lawson and Grace try to talk-down a troubled teenager when she threatens suicide, trapped on a rooftop with her young boyfriend. She was later found to have killed her boyfriend's father. Grace's inexperience is quickly revealed when she tries to fix the situation, which ends in the young woman's tragic death.

The TRG is called out to a sports oval where a heavily-armed gunman shoots Stella, who is saved by her kevlar vest. When the gunman requests to meet with a senior officer, Lawson approaches him and finds he was actually a former weapons-master who intends on suicide-by-cop. The situation ends when, after trying to avoid shooting the man, Lawson is forced to shoot and kill the man when he pulls a handgun on him.

When the TR team intercepts a known drug dealer, they discover that a robbery is about to take place, which then turns into a siege when the robbers take hostages. One of the criminals falls into a basement beneath the bar and later dies. Dom goes in to try to convince the robbers to stop, but the owner of the bar is shot by a spear gun. Eventually, one of the criminals gives up while the other is arrested

Josh, Grace and Michael investigate when an alarm is going off at a high-security laboratory. They find that an animal rights activists group calling themselves 'Freedom From Torture' has freed almost all of the research animals from their cages. Michael is bitten by a monkey who is later found to have herpes

Michael is found cleared of the herpes. The team arrives at a big surburban party and find a group of teenagers have stolen a gun from a security guard. Stella and Michael then go undercover to try and retrieve the stolen weapon. Michael then saves a high school boy from being severely beaten by kids from a rival high school

When a politician’s daughter and her school friend are kidnapped, the team is asked to run a covert operation to get the girls back safely. After it goes wrong, the team discovers the daughter and her friend set the ransom up, before they need to be saved from a lying con-artist.

Lawson is a part of a high speed chase involving a group of carjackers, Kerry is pulled over for drunk driving, and Josh, Grace and Michael are involved in a fatal car accident.

TR is called to a media centre, where a man has locked himself in a room and has planted a number of paint bombs throughout the building. Michael is hit, but not injured. Dom discovers where the bombs really are, and him and grace are both hospitalised after the explosions.

Lawson and Stella deal with a suicidal ex-footballer, Michael and Josh chase burglars through a series of complex tunnels, and Kerry is kept busy at the hospital where Dom and Grace are recovering. Grace unfortunately dies abruptly, while Connor confronts Josh after Grace revealed to him she was cheating on him with Josh.

After a nasty domestic dispute, the TR team are called to look for a man, who has hospitalised his wife after an argument. The team reveals he has a gun, as-well as his son. Lawson has the job of calling him down from a rooftop.

TR is given the responsibilty of protecting an underworld figure, who is testifying in court. A decoy is used, with an actor playing the man, but it goes downhill after the actor is shot dead. Serveral more attempts were made, and Kerry comes up with a unique way of protecting the man. Josh takes the man by himself, but is later cornered by the people trying to kill the underowrld figure. As they leave, TR shows up and the men are arrested. The episode ends with Micheal kissing Stella as she sleeps, and Kerry and Lawson having a conversation about the report on TR that Kerry wrote