Could a terror cell really infiltrate Quantico?
That happened on Quantico Season 1 Episode 15 and the event led to some of the most shocking scenes from the show to date.
Liam and Miranda found themselves under much scrutiny after it. Could it be the thing that led Liam to drink his life away?
The team also had to come to the aid of Claire Haas, who found herself in a tricky situation when it emerged that someone is out to kill her. Uh-oh. That's never good.
Use the video above to watch Quantico online to get up to speed with all the drama.
Paul Dailly is a staff writer for TV Fanatic. Follow him on Twitter.