Matt and George investigate a series of strange occurrences involving Newcomers, who are found to be programmed to carry out someone's dirty work. The method by which they are brainwashed dates back to the slave ship's resistance movement, the Udara, of which Susan was a part. Susan and George's lives are further disrupted when Buck enrolls in the police academy.

When Detectives Sikes and Francisco are presented with the mysterious death of an Eeno, Matt is stupefied to discover that George had rudely snubbed the case. He, like most Newcomers, reviles the outcast Eenos. As the case unfolds, George has to reassess his prejudices, and George's family help save the city from an alien threat originating in an Eeno waste disposal facility.

It's December 1999 and as the end of the millennium approaches, people are attempting to find spiritual enlightenment. However, a few people want to skip all the work that entails. A holy Tenctonese relic in the hands of a heretic is giving them a shortcut but it's not quite as easily controlled as she says.

Sikes and Francisco are called in to a case when a mysterious young girl, who looks part Newcomer, part human, appears. Her huge, brutish counterpart tries to free her from the precinct, and their bizarre relationship turns out to be the result of a slaveship medical experiment. Meanwhile, Cathy and Matt are going to sex school, in preparation of becoming intimate, while Buck distresses his parents by his anti-human opinions.

An Overseer named Ahpossno comes to Earth to take the slaves, and all humans, back to the mothership.

While investigating a series of mysterious Newcomer deaths, Sikes and George discover a plan to eliminate the Newcomer population with a lethal bacteria.

Sikes and George uncover an overseer rejuvenation plot when they investigate the dramatic behavior change of a boy Cathy knew on the slaveship.

George searches for the killer of a Newcomer corporate executive who invented a durable synthetic fabric.

Sikes vows to capture the Newcomer convenience store robber who attacked him and left him near death.

Sikes vows to capture a serial murderer who once eluded him when it appears he has killed again.

A violent confrontation with a drug suspect causes George to give birth prematurely.

Sikes attempts to prove George innocent in a drug case as Susan prepares to transfer the pod to her husband.

Sikes and George trail a man who is obsessed with a Tenctonese porn star.

Sikes and George follow the trail of a mysterious Tenctonese box which is deadly for those who fail to comprehend its powers.

George and Sikes discover a Purist plot to sabotage an election while investigating the bombing of a Newcomer registration office.

George goes under cover as a client at a computer-dating service to locate a female Newcomer killer.

Sikes and George discover that a Newcomer's bizarre game of Russian roulette is responsible for a series of deaths.

George and Sikes search for a Purist radical who has been murdering a rare breed of Newcomers.

While investigating a famous scientist's murder, Sikes and George discover he was attempting to contact a probe seeking the Newcomer slave ship.

As Halloween approaches, a series of Newcomer murders seems to follow the pattern of a Tenctonese myth.

Francisco comes under the scrutiny of the IRS and wrestles with the ethics of asking for a loan from an influential Newcomer that he has helped.

While the city suffers a riot, Francisco, Sikes and Dobbs must defend their precinct house from a gang of thieves.

Sikes and Francisco must each try to deal with their own problem children while keeping a witness safe from a mob hit man.

Sikes tries to help a 16-year-old Newcomer prostitute. George deals with the intrusion of Uncle Moodri and his traditional Tenctonese values.

Sikes and Francisco investigate a doctor who is killing Newcomers to benefit human patients.

A Los Angeles police detective copes with his new partner, an alien struggling to assimilate into Earth society.