B.J. Britt

When a confused and desperate Caroline leaves the hospital and joins her friends at the Mystic Falls Carnival, Damon wants to take immediate action, but Stefan and Elena come to Caroline's defense. Matt is completely mystified by Caroline's behavior, but still tries to tell her about his feelings for her. Meanwhile, Damon has suspicions about Tyler's Uncle Mason (recurring guest star Taylor Kinney) and uses Tyler's volatile personality in an attempt to get Mason to reveal his secret. Upset with everything going on around her, Bonnie takes her anger out on Damon.

Coulson and his team risk everything to stop Garrett and HYDRA.

Coulson and the team are trapped with a traitor in their midst without anyone they can trust.

As the world is turned upside down, Coulson tries to save his one true love; the mystery of the Cellist is revealed.

In an attempt to save Skye, Coulson enlists the help of Ward's former S.O. John Garrett (Bill Paxton); shocking truths are uncovered.

Coulson and his team choose an unlikely refuge to hide from Talbot and work on uncovering S.H.I.E.L.D.'s secrets.