When Peter's pursuit of Khalid hits a dead end, he and Cohen follow hidden clues from Emma's journal; Debbie takes Josh on an unauthorized outing; Avram continues his journey to Jerusalem.

Peter's obsession with Emma's murder leads him to uncover an ancient coded secret; Debbie faces consequences; Avram's journey continues and an assassin tracks him.

Peter looks into Emma's mysterious past, where he uncovers an ancient symbol; someone from Debbie's past attempts a rescue; Lynn's life is put in danger.

Detective Cohen arrests a suspect in Emma's murder; Peter makes a startling discovery; Avram and the red heifer are kidnapped; Tad tries to keep Debbie and Josh from exposing his secrets.

After a startling breakthrough on the case, Peter turns to Golan for new clues; Ridell pressures Lynn to get Peter out of the country; Debbie must trade with Tad Billingham; Rabbi Lev and a partner work in the underground tunnels.