S21 E1: Faith and Doubt at Ground Zero

S21 E2: Campaign Against Terror

S21 E3: The Man Who Knew

S21 E4: Missile Wars

S21 E5: A Crime of Insanity

S21 E6: Let's Get Married

S21 E7: In Search of Al Qaeda

S21 E8: Much Ado About Something

S21 E9: A Dangerous Business

S21 E10: Failure to Protect: The Taking of Logan Marr

S21 E11: Failure to Protect: The Caseworker Files

S21 E12: China in the Red

S21 E13: The War Behind Closed Doors

S21 E14: The Long Road to War: A FRONTLINE Special Report

S21 E15: Blair's War

S21 E16: Kim's Nuclear Gamble

S21 E17: Cyber War!

S21 E18: Burden of Innocence

S21 E19: The Wall Street Fix

S21 E20: The Other Drug War

S21 E21: Public Schools, Inc.