The Lost Symbol - Season 1 (2021)

Forced to split up by Mal'akh, Langdon follows the next clue while Katherine teams up with Sato to find her father another way.

When Mal'akh sends a disturbing video of Peter, Langdon has no other choice but to reunite with Katherine and team up with Sato for a bold move. Nuñez follows a hunch.

Mal'akh pressures Langdon and Peter to decipher the clues; Katherine, Nuñez and Sato try to pick up the pieces after the failed drop.

Cornered Mal'akh sheds light on Zach's final days in prison; after reuniting, Langdon and Katherine face their shared past and the ripple effect that Zach's fate had on it.

Fearing Katherine's mother might be in danger, Katherine and Langdon try to persuade Isabel to protect herself; Peter reconnects with his fellow Leviathan members after Mal'akh turns his wrath on the organization.

Finding an unexpected clue, Langdon, Katherine, Nuñez and Peter partner with Sato and her CIA colleagues to spring a trap for Mal'akh; as the night unfolds, the real puzzle is quickly discovered.

As Mal'akh's plan enters its final phase, Peter and Langdon wrestle over the sacrifice needed to save Katherine; Nuñez and Sato race to understand the weapon known as Cascade.