Thunder Malloy, a preacher, who is a friend of Walker's dies and his wife and sons are left to fend for themselves. Trent, the eldest son, who is also a former student of Walker's, who years ago, had a disagreement with his father, when he chose to join the Army as oppose to following his father's footsteps, decides to leave the Army and come home to help his mother and siblings. Walker tries to get him to maybe be a cop but Trent does not want to carry a gun. For the moment he works as a security guard. Walker is also working a case involving someone who is gunning cops, and it seems that one his targets is Trent's friend Carlos Sandoval.

As Trent tries to help out his family, and reconnect with his siblings especially his brother, Tommy, who felt that Trent deserted them. Walker tries to see if there is some kind of connection all the cops that were killed. Trivette gets a call from a cop, who has some info he would like to give him but asks that they meet in his place, when Trivette goes there, the killer has already killed the cop and shoots Trivette. Carlos was visiting Trent when the killer tries to kill Carlos but Trent saves him. After giving a decription of the man, Carlos thinks that it's a Metro cop named Rod Barkley. While Alex checks on him, Walker asks Carlos to explain who is this guy is and why is he killing all these cops. A few years ago, Carlos, the other cops and Barkley were chasing this motorist who was speeding. When he stopped, Barkley then proceeded to beat him up, eventually the other cops had to pull Barkley off the boy. When all of the other cops stated that there was no reason justifying Bark

Carlos is working undercover. He is working on a ring of drug dealers, who are led by a man known as El Vaquero. When he witnesses the number two man, Johnny Primo kill someone and reports it to Walker, who says that they should take them down but Carlos wants to get El Vaquero because he believes that he was the one who killed his brother who was a junkie. Johnny has his fingerprints checked out and discovers that he is a cop. They grab Carlos and Johnny demands to know what he has told and when Carlos refuses to say anything Johnny beats him up. Carlos escapes and is taken in by a homeless man he met earlier. Trent and Walker are worried because he was suppose to come to the Karate tournament that Trent's gym is joining. They try to find him and the homeless man finds Trent and tells him where Carlos is. But a disgruntled member of the community, who was thrown out tells Primo's people where Carlos is and they tear the place apart and when they find Carlos, Johnny was about to kill h

Roscoe Jones, the (black) minister who succeeded Trent's father is being targeted by a man named Stan Gorman. It seems that years ago when Roscoe was in the Army, his friend, who is also black was the C.O. of a unit and one of the men in his command's Gorman. Gorman's a bigot, who didn't like being ordered by a black man. Eventually the tension between the two men reached it's breaking point when Gorman tried to kill Roscoe and his friend, while he killed his friend, Roscoe survived and testified against Gorman, who would be sent to prison. While in prison Gorman became head of a white supremacy group, and now he is after Roscoe.