Dan Brown's The Lost Symbol Season 1 Episode 6
Diophantine Pseudonym
Mal'akh pressures Langdon and Peter to decipher the clues; Katherine, Nuñez and Sato try to pick up the pieces after the failed drop.
Guest Stars
Sammi Rotibi
Agent Adamu
Greg Bryk
Ellison Blake
Raoul Bhaneja
Nicholas Bastin
Laura de Carteret
Isabel Solomon
Steve Cumyn
Jonathan Knopp