Deadly attacks on a team of scientists lead Nick, Hank and Wu on a investigation unlike any they have had before. Meanwhile, as the research continues into the origins of the cloth, Monroe and Rosalee learn that Eve is still feeling the after effects of the death grip. Elsewhere, Capt. Renard reaches out to an old friend to get answers to the origins of the symbols drawn by Diana.
Bozer’s first overseas mission goes terribly wrong when Mac and the team are blamed for a terrorist bombing and the Phoenix Foundation is forced to disavow them. Using a ruler and coconut oil to make disguises, the team must avoid authorities and clear their names without any support from back home.
Gideon shows Mary what life could be like if she chose love over country. Catherine fights to cover King Charles' increasingly erratic behavior, while Claude finds an enemy in her sister Leeza.
When internet sensation Logan Macdonald comes to town, a supernatural infection hits, via a viral video. Meanwhile, Molly has a frightening vision that could predict a bleak future. Can the team cure the curse before it takes over town?
Damon and Stefan must join forces against Cade in order to save Elena’s casket. Meanwhile, Caroline and Alaric deal with their daughters’ burgeoning magical powers.