Not Now, but Maybe in the Past

1 You're Doomed 2 We Still Have a Chance 3 We Can Prevent the Killings 4 We Found the Killer 5 Changing the Past Alters the Present 6 Catch Him by All Means 7 We Must Dig Deeper 8 How Are You Alive? 9 Hongwon-dong Case 10 Someone Has to Stop the Bad Guys 11 The One Last Case 12 The Case Was Manipulated 13 The Real Assailant 14 Not Now, but Maybe in the Past 15 Is It Really You? 16 If You Don't Give Up