"The Equalizer: Robyn's Team Survival and McCall's Mission"

In the Season 4 premiere of "The Equalizer," Robyn's friends are in danger of being burned alive by her former CIA colleague, Michelle Chambers. Robyn and her team are taken into custody by the CIA after rescuing her friends and Fisk. They discover that the freedom fighters are being held in a government detention center and learn of Michelle's plan to kill the secretary of state. A showdown ensues, resulting in Robyn stabbing Michelle and being taken to the hospital. While some loose ends are tied up, the episode ends with Michelle escaping custody, leaving the team in jeopardy.