As John pursues his mysterious mission, Claire looks into his identity; Lena is upset that Wes has been discussing a case with Claire; Drill keeps playing a dangerous game with Harper, Minx and Henry.
A mysterious entity leads Sean and his hostage, Dr. Maria Benavidez, to a secret location; as Claire and Wes continue to investigate Sean, his next target starts to become apparent.
Claire has a talk with Sean, who cannot remember her or anything about his past; Wes goes back to Mali for another look at the fulgurite; Lena tries to ensure that Minx's conversations with Drill cease.