The opening credits foreshadow certain events that happen to either the characters or the plot.
During the first season, the opening credits show a safe being unlocked. The numbers shown are 42-15-68, and these numbers have meaning. 42 is the amount of deaths that occur during the first season, 15 is the number of years Hood spent in prison, and 68 is a reference to Revelations 6:8 which was spoken by Kai Proctor in episode 1.7, 'Behold a Pale Rider'.
The photographs in the opening title sequence change in every episode.
Each episode has an additional scene after the end credits.