While working in a subway tunnel, a jackhammer operator discovers the body of travel writer Francesca Dutton encased in the concrete wall, He is shocked to discover she is still alive and hasn't aged, even though the wall was constructed fifty years before. Posing as her grandson, Cade shows up at the hospital in the hope that she is living proof of an alien experiment. She promises to tell Cade everything he wants to know if he can find "the others". Eddie researches her request and discovers that two more people disappeared the same year -- the only connection being that all three were members of a tour group that visited a monastery in the Himalayas. As they start trying to uncover the whereabouts of these "lost souls", they learn that the truth may be even more horrifying than they thought.