Who tried to kill several people at a parade?
On Grey's Anatomy Season 15 Episode 13, a sea of patients flooded Grey Sloan Memorial when gunfire was fired at a group.
Maggie was blindsided when a face from the past showed up amongst the victims.
The doctor had to put her personal differences with this person aside to save their life.
Meanwhile, Meredith tried to come to a conclusion about whether she was doing the right thing by dating De Luca.
Elsewhere, Owen and Amelia learned some life-altering news about Betty.
Use the video above to watch Grey's Anatomy online right here via TV Fanatic.
Catch up on all your favorite shows and reviews and join in the conversations with other fanatics who love TV as much as you.
Paul Dailly is the Associate Editor for TV Fanatic. Follow him on Twitter.