Alien Nation - Season 1 (2000)

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

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.

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

The murder of an astronomer leads Sikes and Francisco to the discovery of an extra-terrestrial probe passing through the solar system. But is it friend or foe? Sikes' relations with his Newcomer neighbor, Cathy, develops. George and Susan discuss having another baby.

A series of murders of Binnaum, a rare kind of Tenctonese needed for catalyzing reproduction, raises fears that Purists are trying to stop the Tenctonese from breeding. Francisco asks Albert to be the Binnaum for his and Susan's next child.

The Day of Descent, the fifth anniversary of the Tenctonese's liberation from slavery with their ship's arrival on Earth, finds Francisco depressed. A lethal form of gambling from the ship may be continuing on Earth.

Sikes and Francisco seek an elusive Newcomer woman - all of whose dates wind up dead. George worries about Susan's fidelity.

A break in at a behavioral lab and a series of execution-style murders dredges up buried memories for Francisco.

As Susan and Buck campaign for Tenctonese suffrage, bombings and kidnappings are linked to the anti-Newcomer "Purist" organization.

Several parties claim ownership of a mysterious Tenctonese box that leaves a trail of death in its wake.

The line between reality and fantasy blurs when a crossed video phone line lets a boardroom of executives see a sex actress attacked. George becomes swept up in celebrity when a news crew does a week-long special on him.

George is suspended from the force when several grams of drugs go missing on his watch. An old mentor of Sikes' returns. The Francisco family prepares for the Ejection, when the baby will transferred from Susan to George.

Sikes and Francisco investigate possible steroid dealings at a gym. George must reconcile his and humanity's conceptions of manhood while he is pregnant.

Francisco worries that Sikes is hiding something when he cancels his vacation plans to help track down a killer.

When Sikes comes back after being pronounced dead, he becomes obsessed with finding the Newcomer he believes healed him.

George investigates the murder of the chief scientist at a company in which he is heavily invested. Buck, inspired by one of his teachers, protests that the workers at the company are being exploited. Matt sells one of his lottery tickets to Albert, only to see him win.

Cathy finds a boy she knew from the ship, but suspects he has been abused.

Tensions between partners erupt when Francisco passes the Detective 2 exam and is promoted over Sikes. Matt becomes uncomfortable with his attraction to Cathy. The mysterious death of a Newcomer judge points to a lethal bacterium being used as a weapon.