Sgt. McCluskey recruits Toby on a case involving smuggled weapons, which takes a turn for the worse when an undercover operative winds up dead.

Toby investigates an assassination threat against a high-ranking military colonel who may have been involved in the mysterious disappearance of an army private.

Sgt. McCluskey, with the help of Toby, tries to determine if a mob boss is really behind the murder of Will Sterling, the business partner of a celebrated restaurant chef.

Toby starts doubting his abilities after Michelle questions the veracity of his insights during their investigation into a wealthy philanthropist's murder.