Watch The 100 S03e11 1 -

A.L.I.E. takes full control of Raven to stop the group, using her to verbally tear apart each character's insecurities. This "breaking speech" highlights their darkest deeds: Bellamy’s role in the massacre, Clarke’s decision at Mount Weather, and Jasper’s ongoing grief over Maya.

This is the first time in Season 3 that the original core group is truly united against a common enemy. Watch The 100 S03E11 1

Using a salvaged wristband from season one and the EMP, the group successfully shorts out the chip. Clarke uses her knowledge as a "Flamekeeper" (learned from Titus) to surgically remove the liquefied remains of the chip from Raven’s neck. Why It Matters Clarke’s decision at Mount Weather