Directed by Ken Wiederhorn
Airdate: March 26, 1989
Guest Stars: Krista Errickson (Christine); Linda Darlow (Joyce Booker)
"Nemesis" is more psychological thriller than cop drama as Booker blames himself for the killing of a student who was mistaken for a NARC. He's infiltrated a gang of drug dealing teens at a high school who call themselves "the wastoids."
Booker's guilt leads him to question himself as a cop. He visits his mom and tries to connect with his girlfriend. As he struggles not to blow his cover, the tensions heighten
The best part of the episode is the intro, editing like a late '80s horror film Wes Craven style. Greico was allowed to show off his acting skills here, the episode would become a template for his own series Booker to air the next season.
Reportedly, the episode was originally written for Johnny Depp, who objected to the script having Hanson cover-up a murder. Hanson appears only briefly. More of an outlier episode, slightly out of tune with the season, but still good.