Chase witnesses Nicole's murder and becomes a loose canon.
After witnessing Nicole's murder at the order of Bobby Cole, Chase becomes a loose cannon. August pleads with his partner to follow legal avenues to catch Cole, and Captain Jensen suspends Chase after he destroyed important papers belonging to Cole. Jensen also tells him that the FBI suspects Nicole was working with Bobby Cole. Chase is livid, knowing this could never be true. Cole meets with Agent Shoenrock, who is revealed to be undercover, acting as an accomplice, and tells him of his plans to execute the Colombian drug minister at the drug summit. Chase visits a weapons dealer he knows and purchases some heavy duty weapons for his own personal use. After a huge battle in the streets involving semi-trucks, helicopters, and rocket launchers, Chase ends up on a pier with Cole, weapons drawn in a stand-off, each prepared to take the other down, for good.
Three leading drug dealers die under odd circumstances.
After three leading West Coast drug dealers die under suspicious circumstances, Chase and August suspect that their old nemesis, Bobby Cole, is trying to claim all the drug action for himself. As Los Angeles prepares to host an international drug summit, the detectives investigate Cole through the usual legal channels while he ruthlessly carves out the competition and prepares to strike a deal with a Colombian drug lord.
A Western memorabilia collector is found murdered.
A Western memorabilia collector is found murdered, and among the victim's belongings is a laptop with August's name in it. August figures out that his name was listed among the descendants of Buffalo Soldiers -- a troop of black soldiers that fought during the Civil War. This brings up a part of August's past that he is ashamed to discuss: his great great-grandfather, Augustus Brooks, was given a dishonorable discharge from the Army when he allegedly deserted his troop with three other soldiers, who all claimed to have been given a map leading to a gold mine that was never proven to exist. August's Aunt Maisie is attacked in her home by a thug, hired to steal a portion of the old map. The pieces have been handed down to each generation, and now someone is attempting to put the pieces together and lay claim to the gold.
A former teacher of Augusts' is brutally killed.
Professor Larry Benton, a former teacher of Augusts', is brutally killed outside a jewelry store by thief Willie Mathers. August is devastated upon his arrival at the crime scene, having just had lunch with Benton moments earlier and vows to catch Mathers.
August goes undercover as a motorcycle cop to lure a killer.
When two motorcycle cops are shot and killed, August goes undercover as a motorcycle cop, hoping to lure the killer into striking again.
As Chase and Nicole transfer Danny to a safe house, he escapes.
Danny Bledsoe, a key witness set to testify against crime boss Alfredo Matessa, is escorted to Los Angeles by Nicole Stockman, a beautiful tough-as-nails detective from San Francisco, where he had fled to. From the start, Nicole makes it very clear to Chase and August that she resents doing all the work to catch Danny in San Francisco, only to have them receive all the credit during the L.A. trial. And Danny isn't known as "The Eel" for nothing. As Chase and Nicole are transferring Danny to a safe house, he escapes. Afraid that the police can't protect him from Matessa, Danny decides to take his chances on the street. With time running out, Chase, August and Nicole have to catch The Eel before Matessa's thugs do.
An Army officer accused of selling arms on the black market.
Chase and August must assist the Army in catching Major Lauren Wiley, a C.I.D. officer accused of selling arms on the black market. Lauren is an old girlfriend of Chase's from college, but Chase insists that he works the case. Captain Randy Geddis leads the Army investigation and demands that Lauren be brought back to him immediately. At one point, Chase and August think they have Lauren cornered, but before she escapes, she tells a different story. She claims that Geddis is the crooked one, selling weapons to Bobby Cole. Chase and August don't know who to believe.