Peter Ducek, an elderly juror, disappears on the same day the jury is dismissed to consider a verdict in a child murder case. Initially, Jack and the team suspect that the disappearance is connected to the suspected murderer who has connections to violent gang members and threatened the jury members while in court. However. following interviews with Peter's son, the team begins to believe that the key to finding the missing man may lie in his past, a past that could include connections to Nazi Germany.