Peter delves further into Emma's mysterious past, which ultimately leads him to uncover an ancient symbol that has been hidden for centuries. At the compound in New Mexico, someone from Debbie's past attempts to rescue her. Lynn's life is put in jeopardy.
Dig tells the story of Peter, an FBI agent stationed in Jerusalem who, while investigating a cuddle of a woman archaeologist, uncovers a conspiracy 2000 years in the making that threatens to change the course of history.