Season 1 Episode 4 Chasing Ghosts

Allegiance Episode 4 "Chasing Ghosts" Photos

Allegiance Episode 4 "Chasing Ghosts" Photos

A shocking discovery leaves Alex (Gavin Stenhouse) struggling to reconcile his theories with the evidence found at City Hall, and Sam (Kenneth Choi) encourages him to keep looking for clues.

Check out the sneak peek images for "Chasing Ghosts" (airing on Feb. 26th) in the gallery below:

Source: NBC