Henry Morgan, an immortal, searches for the man who caused a subway train accident. Meanwhile, a mysterious call informs Henry that someone knows his secret.

When Homicide receives a human heart, Jo asks Henry for help. Henry looks for a Jack-the-Ripper copycat or the actual person. He gets help from Abe and Lucas.

After being awarded a trophy for his humanitarian work as a doctor, Tyler's killed with the trophy. Jo and Henry investigate. Why is Tyler's high school graduation date tattooed on his chest?

Henry and Jo become immersed in the world of a dominatrix, who doesn't dole out pain for kinky pleasures but for therapeutic purposes. Meanwhile, Abe reacquaints himself with his own form of pain and pleasure - his former wife.

A man dies when his car catches fires and incinerates him. The various suspects center around the world of Jazz and concerns the true author of one of its greatest standards.

An English nobleman, about to get married to a rich man's daughter, is found murdered in Central Park. Henry and Jo investigate. He turns out to be an ignoble American.

Henry's mysterious anonymous caller confronts him by framing him for a murder. With the police closing in he is faced with the prospect of having to either leave town or confess his true nature to everyone.

Henry returns to work to investigate the murder of a young investor, who happens to be the son of one of Abe's wartime Army buddies. Abe and his Army buddies decide to play detective and solve the case.

Jo and Henry pursue the killer of a jewelry store burglar who has a connection with Jo's dead husband.

A murder opens the door to a hoard of Nazi secrets and the return of an old enemy.

Henry and Jo investigate the murder of an exiled king; Abe discovers something about his bloodline.

A member of a secret "hack-tivist" group is murdered; Abe remembers his days as an activist.

A deep sea salvage operator is killed after he finds gold on a sunken ship, the very ship Henry once sailed on in 1814 and on which he died the first time. Adam returns and thinks one of its treasures holds the answer to their immortality.

The mummified body of a woman who died 31 years ago is found in the wall of a nightclub. Henry has only 48 hours to prove the man originally convicted of killing her didn't do it. Abe thinks he may have an idea on how to find Abigail.

A human foot in a blood-soaked ballet slipper is found in a bin at a theater.

Henry tries to find out what really happened to Abigail after she left him.

Jo is all that stands in the way of Henry's and Adam's impending clash.