1: Ranking every season of Blue Bloods worst to best

2: Season 1: Introducing the Reagan family and the challenges they face in the NYPD

3: Season 2: The family deals with betrayal and tragedy while upholding justice

4: Season 3: Tensions rise as the Reagans contend with personal and professional dilemmas

5: Season 4: A season of twists and turns that test the bonds of the family

6: Season 5: The Reagan's face new threats and old demons in this gripping season

7: Season 6: A season of heartbreak and triumph as the family navigates tough decisions

8: Season 7: The Reagans are pushed to their limits in this intense and emotional season

9: Season 8: The family faces its greatest challenges yet in this action-packed season finale