When Joan revisits one of Sherlock's cold cases, she discovers an unsolved murder is connected to a rare prehistoric fossil. Meanwhile, Sherlock finds himself in uncharted territory when his duties as a sobriety sponsor cross his personal boundaries.
Episode rating
Cast of episode
81
17
1
- Sherlock Holmes
- Dr. Joan Watson
- Detective Marcus Bell
- Captain Thomas Gregson
- Gay
- Randy
- Diego Salcedo
- Jerome Thomas
- C.
- Waitress
- Wolfe
- Ivan Kershavin
- Andrew Donnelly
- Lawyer
- Detective Park
- Charlotte Klemmer
- Uniform
- Emerson
- Reporter