Jessica's niece receives a gift from her grandfather---a man long thought dead---which leads Jessica (Angela Lansbury) to a circus beset by accidents and murder. Part 1 of two. Neil Fletcher: Jackie Cooper. Edgar Carmody: Martin Balsam. Brad Kaneally: Greg Evigan. Katie McCallum: Pamela Susan Shoop.

Conclusion. Despite her brother-in-law's confession, Jessica refuses to believe he killed the circus foreman. Neil Fletcher: Jackie Cooper. Preston Bartholomew: Alex Cord. Edgar Carmody: Martin Balsam. Brad Kaneally: Greg Evigan. Katie McCallum: Pamela Susan Shoop.

A retired policeman decides to re-examine an old case he never solved in which Seth was a strong suspect.

Attending a concert in Washington, D.C., Jessica gets involved with two East German defectors and a murder.

While diving for sunken treasure near Cabot Cove, a young woman is murdered.

A veteran reporter, who suffered a heart attack, says his best medicine would be the removal of his publisher who has turned a good paper into a yellow rag.

Jessica offers to help Thomas Magnum, who has been accused of killing a hitman with an unknown target.

The crossover starts on Magnum, P.I. S07E09 Novel Connection (I).

Jessica reluctantly agrees to do an interview for an old friend, Paula Roman, but is surprised when Kevin Keats, a journalist who had been doing a series of stories on an art dealer who was really a drug dealer, shows up to do the interview, complete with cameras and crew. After Kevin is presumed dead when a boat Amos chartered for him explodes, Cabot Cove explodes with press and paparazzi, and the citizens blame Jessica for all the problems it causes, demanding that she solve the mystery. Unfortunately, once Keats is revealed to be alive and well, the real question is who the true target was.

The murder of the leading lady's understudy disrupts rehearsals of a play starring two previously married, but now warring, actors.

The 'headless' horseman rides again, but his costume becomes more realistic.

Theft and murder of the courier occur on board a jet bound for London.

The phone wires get crossed during a storm and Jessica can't convince anyone that what she heard was real.

Jessica tells the tale of a composer accused of killing the professor who plagiarized his music.

A lying TV Consumer advocate is killed. Was it done by one of the clients whose products he maligned?

Jessica inherits a boxer's contract and her old friend; Harry McGraw is accused of murdering its former owner.

An artist is murdered and his prized painting is missing.

After the engagement party for the offspring of two estranged comics, someone is found dead.

Grady Fletcher is in big trouble when his boss, a specialist in tax shelters, is found dead and he is the main suspect.

First, the reform mayor dies in an ""accident"" and then the mayor's father is murdered after he demands an investigation of the ""accident"".

Thirty years ago, Sam Wilson was sent to prison for murdering his boss, Malcolm Jarvis. After finally being released, Sam goes home to his wife and now-grown son who is expecting his first child with his wife, Terry. At Georgia Jarvis' request, Jessica looks into the crime, and through flashbacks, Sam remembers when Jarvis had offered him $10,000 to make his suicide look like murder. While Jessica believes that Sam is innocent, she doesn't believe it was suicide, and asks Sam's son Rod, a police officer, to lend a hand.

During a short black-out in the studio where Jessica is recording a book for the blind, the studio co-owner is murdered.