The Rookie 5×22 Promo “Under Siege” Season Finale | Nathan Fillion series The Rookie 5×22 “Under Siege” Season 5 Episode 22 Promo (Season Finale) – After one of their own is shot, the team suffers a series of close calls and realizes their division may be a target for a group of masked assailants. Show More… 306 Comments Related Videos The Rookie 4×22 Promo “Day In The Hole” (HD) Season Finale | Nathan Fillion series The Rookie 3×14 Promo “Threshold” (HD) Season Finale Nathan Fillion series The Rookie 2×20 Promo “The Hunt” (HD) Season Finale Nathan Fillion series The Rookie 1×20 Promo “Free Fall” (HD) Season Finale Nathan Fillion series