A Chelsea Educationthe Chelsea Detective : Seas... File

: A skeleton unearthed in a garden plot leads the team into the impenetrable world of the U.S. Embassy and a guest appearance by Alex Kingston as the American Ambassador.

While the murders provide the structure, the characters' personal evolutions offer the emotional core:

Season 3 consisted of four feature-length episodes, beginning with a holiday special and continuing through a series of complex investigations: