While FBI agents Mei, Kelton and Tyner make some progress and clues seemingly come together, more enigmatic evidence is uncovered. An obvious suspect is brought into FBI headquarters for questioning, and it is discovered that Marcy has been keeping a little secret. Her suspicious mother, Jessica Nevins, offers parenting advice while Senator Jeffrey Collins copes with the unfolding nightmare as political pressure accelerates. Determined reporter Judy Nash visits Gloucester, MA, to learn more about who Sara Collins actually is.
Vanished centers on the search for Sara Collins. She's the wife of Senator Jeffrey Collins. Sara vanishes and the FBI lead by Agent Graham Kelton is on the job, but before they can find her they need to find out who she really is.
The mystery surrounding the disappearance is seen through the eyes of the FBI, members of the family and a reporter trying to get the story of her career.
The search for Sara will expose many secrets. Nothing is as it seems. Everyone is a suspect because of their secrets.