2. Nautilus

Complete story — includes the ending

Reese and Finch work to save the life of Claire Mahoney, a talented young mathematician who is heavily involved in solving a nautilus -themed cryptographic puzzle, a recruitment tool used to find gifted minds. Claire is unaware that Silverpool, a private military firm is targeting her for stealing files associated with the game. Finch learns that Samaritan is running the game and attempts to warn Claire against continuing. Claire ignores him and completes the game; she is held at gunpoint by Silverpool operatives who force her to hand over the stolen documents, only to be shot dead by snipers. Samaritan recognizes Claire as an asset, while Claire's documents expose Silverpool's atrocities, thereby eliminating a potential competitor to Samaritan. Finch shows Reese and Shaw the team's new hideout.