A cop's crush on Malloy turns into a deadly obsession.

Young Joey is the sole witness to a drug-related mother, so his mother, Jennifer, turns to her ex-boyfriend Grady for help.

Adam is thrilled when his old army buddy Doc Nash comes to town, until he realises that Doc is dying from exposure to an defoliant named Apple 66. Adam promises Doc that he will expose AlterChem for what they're doing.

When a pizza clerk is shot in a white neighborhood and Willis is spotted trying to capture, the culprit, some local teens assume Willis was the killer because he was black, and this creates a race war between Willis' Youth Rescue group and the teenagers.

When Miguel saves an old man from being beaten to death, Adam is shocked to realise it's his former foster father. He hasn't seen Joe or Catherine Johnson since he was ten years old and he was taken away from them. Unfortunately, Joe is in the throes of Alzheimer's, and is unable to help Adam learn about is past, and also unable to help capture the men who beat him.

Formerly a famous photojournalist, Jack Faulkner is looking to redeem himself by catching the city's latest villian, a man who murders nurses. Grady is enthralled with the man who claims to have known his parents, and ignores Adam's warnings to stay away.

After Adam accidentally shoots the son of a terrorist, he returns the 'favor' by shooting Malloy. Even though Malloy is under house arrest, Grady and Miguel manage to get word to him that Malloy is dead, and the three of them go after Nidar.

Grady saw Thomas Hardin, the man who killed his parents, alive. And when he tells Beaudreaux, Beaudreaux tells him that Hardin is dead, and they saw him die remember. However, Beaudreaux was lying it seems that Hardin didn't die but was in a coma and Beaudreaux chose not to tell Grady about this. But what Beaudreaux doesn't know is that Hardin regained consciousness and has been walking around, and has accepted a job. Grady finds out who he is working for, and he and Beaudreaux get Hardin and this time he is dead.

Malloy is shocked to learn that her former sweetheart, Billy, is in town, and while she is saddened to learn of his wife's death, it opens the door for a relationship between the two of them. The only problem is that Billy is widely suspected of having caused his first wife's death, and there are some pretty bad people after him.

Adam is trying to handle a hostage negotiation situation when he is introduced to his new partner, Eric Rothman. Initially Adam resents Rothman, because he believes his father bought him a place on the force, but changes his mind when he watches Rothman walk away. Any doubts he had left disappear when he realises that Rothman's got demons of his own...his sister was brutally raped and attacked months earlier, and has never come out of her coma.

A prisoner accuses Adam of taking bribes, and the ensuing investigation uncovers evidence that Adam's old partner, Dennis Malloy, may have been on the take. Adam is reluctant to believe it, but he can't ignore the evidence.

When Schuham dies in an alley shoot-out, Kelsey is devastated, as they'd only recently begun a relationship. She is quick to pin the crime on Damon Moore, but Adam and Grady believe that there is more to it than that.

Grady is pulled back into an underground world of no holds barred, to the death martial arts fighting when two of his students find themselves in the competition, and in over their heads. Beaudreaux is investigating a string of bodies with broken necks, and the trail leads straight to the Circle of Death.

After being shot by a Shadow Dragon, Adam lays comatose in a hospital bed, dreaming that he is on trial for the unjustified death of Michael Sunks, the man he and Dennis were chasing when Dennis died.