The latest episode of The 100 teases more than one major character death and introduces us to a mysterious figure that's been fueling the action all season long. "The Old Man and the Anomaly" focuses on the chaos at Sanctum,as Josephine looks for a way to erase Clarke for good, recruiting some of her friends to conclude it. While the group looks for a way to save their leader, and Diyoza and Octavia finally effect their way to the anomaly where they meet the genuine Gabriel and he's ... well,we won't spoil it here.
Source: blastr.com