Was the mole finally brought to justice?
That was a key question on NCIS: Los Angeles Season 8 Episode 5 when Sam assisted Hetty in the on-going probe.
Meanwhile on this hit drama series, Anna Kolcheck partnered with Callen to investigate the brutal murder of a navy machinist who had high security clearance.
However, the plot thickened when someone close to the victim was revealed to know more about the murder than the team first thought.
Use the video above to watch NCIS: Los Angeles online to get caught with the latest developments
Paul Dailly is a staff writer for TV Fanatic. Follow him on Twitter.