Joel Hatch

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.

Alicia and Will deal with their growing sexual tension and Diane and Kurt McVeigh continue their flirtation. At the same time, Alicia defends a college student accused of killing her sorority sister while under the influence of a sleep aid.

Lincoln, who thinks he sees his father at the execution, wins a two-week stay when a judge orders Terence Steadman’s body exhumed. Sucre calls in a favor to help Michael verify a new route to the infirmary through the complicated drain system.