A Boy Scout finds the decomposing body of Lt. Loren Singer in a tree. The NCIS investigates, and Harm becomes the prime suspect. The NCIS finds not only surprises about the death but also circumstantial evidence pointing straight to Harm.

Harm returns. Bud does poorly in representing Sturgis, who stands accused of giving inadequate counsel. The admiral tries hard to propose to Meredith. Mac poses as Webb's pregnant wife while undercover for the CIA in Paraguay.