The season finale of The Lost Symbol , titled serves as the definitive conclusion to the Peacock prequel series. Following its release on November 18, 2021, the show was canceled after one season as it was deemed to have told the "complete story" of Dan Brown’s original source material. Episode Plot Summary
: Robert and Katherine decide to take their relationship slow, with Robert returning to his academic life at Harvard. The Lost Symbol - Season 1Eps10
: Robert Langdon intervenes, shattering Mal'akh’s delusions by revealing the true nature of the "ancient wisdom." In the ensuing struggle, Katherine stabs Mal'akh with his own sacrificial dagger to save Robert, and Mal'akh dies in Peter’s arms. The "Lost Symbol" Revelation The season finale of The Lost Symbol ,