Criminal Minds: Season 2, Episode 20

2 - 20: Honor Among Thieves

Elizabeth Prentiss, a foreign ambassador and SSA Emily Prentiss's mother, seeks the aid of the BAU when a Russian immigrant is kidnapped and held for ransom. While the rest of the team are at the BAU HQ, Gideon, Reid and Morgan fly to Baltimore to meet up with Agent Josh Cramer who returns to help them with the case.