John recalls his days as a con man in the 1920s when he and Eva investigate the death of a woman who appears to have drowned. Meanwhile, John begins to wonder if he was right about Sara.

The dying wish of John's first partner (Chris Bauer), who was shot in the line of duty, brings back memories of John's early days as a detective, and even provides clues about his search for mortality. But it also leads to run-ins with the Russian mafia.

When a murder victim in Chinatown reminds John of a son he lost in the early 20th century, the investigation leads to a ruthless crime family who are related to his offspring, causing John to reflect on the consequences of his immortality.

While investigating a homeless man's death and a possible connection with one of the deceased's prized possessions, which he kept at a shelter, John recalls how his addiction problems in the 1960s landed him in a psychiatric ward.

A pair of brutal sexual assaults---one resulting in murder---remind Amsterdam of events he witnessed while working for a wealthy landowner in the 19th century. Meanwhile, Amsterdam gets better acquainted with Sara.

Skeptical of a confession by a homeless Gulf War veteran (Orlando Jones) who says he murdered a psychiatrist, Amsterdam probes the doctor's own research for clues about the killing.

Amsterdam and Eva's probe of a student's death at a posh private school leads to a revelation of a twisted affair. And a secret of Amsterdam's comes out following a flashback to 1941.

The case of a murdered socialite leads Det. Amsterdam back to his past.