A young Harvard symbologist must solve a series of deadly puzzles to save his kidnapped mentor and thwart a chilling global conspiracy.
Young Harvard symbologist Robert Langdon is drawn into a mystery when his friend and mentor Peter Solomon is kidnapped. Peter's daughter Katherine - and Langdon's ex - joins him on the quest.
Reeling from the day's events, Langdon and Katherine get help and shelter from an old friend while they attempt to decipher the most recent clue.
With the CIA in hot pursuit and Mal'akh demanding they split up, Robert and Katherine are forced to turn to Nunez for help. Sato confesses to Bellamy that she was Zachary's CIA handler.
Forced to split up, Langdon follows the next clue while Katherine receives what she believes to be a psychic message from her father.
Langdon uses an inscription to lead the team to an engraving at the National Art Gallery, but is still unable to find a map to the portal. Mal'akh sends Langdon evidence that Peter is still alive.
After being captured by Mal'akh, Langdon is finally reunited with his mentor, Peter. Katherine tracks down Mal'akh's lair by watching Peter's hostage tape repeatedly.
While in CIA custody, Sato interrogates Mal'akh to find out how he evolved from Zachary Solomon to the monster he is today. Langdon and Katherine face their shared past.
Langdon and Katherine rush to warn her mother Isabel to protect herself. Peter reconnects with Leviathan members.
Katherine, Langdon and Peter decide the only way to beat Mal'akh is to continue solving the clues. Langdon, Katherine, Nunez and Peter partner with Sato and the CIA to spring a trap for Mal'akh.
As Mal'akh's plan enters the final phase, Peter and Langdon wrestle over the sacrifice needed to save Katherine, and Nunez and Sato race to understand the weapon known as Cascade.