After an off-duty Officer is shot dead in a grocery store, Hooker – an old friend of the family's – promises the dead man's wife and son to find the culprit. A case in which the deceased Officer's partner sent a criminal to prison on a false testimony may be the key to the killing; but all the time, the killer has his next target in his sights... Meanwhile, Hooker looks into the recent murder of a local prostitute, only to discover that the two cases are linked...

The pursuit and capture of a criminal reunites Hooker with Officer Karen Remy, whom have previously been romantically involved with each other, but soon after, Hooker is informed that Karen is dead after being shot in her car. With the murder having signs of being a professional hit, Hooker becomes determined to find the person responsible, and his prime suspect is Karen's Police partner. His disobeying orders by continuing to probe the killing sees Hooker suspended, but that's not enough for him to give up the hunt – but is there more to the case than he knows?...

Hooker, Corrigan and Stacy are working undercover on a pimp sting when they respond to an armed robbery alert at a nearby bank, and the ensuing shootout as the robbers escape sees an Officer fatally wounded and dying in Stacy's arms. The hunt is on for the murderous gang, who are already putting their next bank robbery plan into motion, but Stacy's performance begins to suffer as she is over-come by fear that she will be the gang's next victim...

When a female attorney is murdered by a shotgun-wielding killer, the third woman attorney to be killed in similar such fashion, Hooker, Stacy and Corrigan search out the killer - who is actually a man who's become embittered after his girlfriend was deemed mentally unstable and dropped from attorney school...

During a stake-out, Hooker is forced to shoot a hired hit-man, unable to learn who he was hired to kill. Soon after, an armed robbery at an airport cargo depot leaves security guard Bill Kennedy, an ex-Officer, fatally shot. Stacy had previously met the kindly Bill through his blind son Steve, leaving herself, Hooker and Corrigan determined to find whoever pulled the trigger. But their investigations suggest that the hit-man and Bill's killing were linked, and that the whole thing seems to be connected to the Mob – and Steve is next on the hit list...

After Corrigan drops Detective O'Brien's niece Jennifer off at a jewellery store to buy a gift for her uncle's 25th anniversary in the force, the store is hit by a pair of armed robbers, and in the robbery Jennifer is gunned down. With the only lead being the hi-tech gun used by one of the thieves, Corrigan feels responsible for Jennifer's death, and the investigation is hampered by a television news reporter eager for a story. Meanwhile, one of the murderous robbers gets a taste for the fame that the shooting brings him, and plans to make a play for the determined reporter...