Blindspot: Episode 4x21 "Masters of War 1:5 - 8" & Episode 4x22 "The Gang Gets Gone" Promo (HD) (2-Hour Season Finale)

Here's a promo for next week's 2-hour season finale, episode 4x21 "Masters of War 1:5 - 8" and episode 4x22 "The Gang Gets Gone".