 Nina , initially doubtful that Olivia met Bell , recognizes the " great storm " phrase , and attempts to help Olivia in any way possible . As Olivia recounts the name of another cryogenics facility from Bell 's note , she receives a text message from Charlie warning her that Nina is the shapeshifter . She leaves and regroups with Charlie , but in a side alley , is alerted by her phone that Massive Dynamic 's analysis of the first device was completed , and reveals Charlie as the shapeshifter . Too late , Olivia realizes she has told Charlie the location of the cryogenics facility , and Charlie relays this to another agent . After a brief fight for her life , Olivia shoots and kills the shapeshifter . Broyles ( Lance Reddick ) helps to comfort Olivia that she had to kill the man she thought was Charlie . At the episode 's conclusion , the head with Bell 's symbol is reattached to the body of a shapeshifter . 
