The CIA abandons Sam after he goes undercover with a heroin dealer while trying to recover a weapon. Meanwhile, Pearce continues searching for Max's killer.
Fiona must break into a guarded safe in order to help a CIA asset who's in over her head with a black-market businessman. Elsewhere, Sam and Jesse track a skilled sniper and look for answers at a mercenary training camp.
Detectives scrutinize a murder victim's family members, Irish Gypsies who have a criminal history.
