E1 - Episode 1

Aired: November 16, 2021

It is a story of four police trainees in Noryangjin who failed their police exams and became known as F4 (with the “F” standing for failure) and the different situations they come across as they pursue criminals.

E2 - Episode 2

Aired: November 23, 2021

E3 - Episode 3

Aired: November 30, 2021

E4 - Episode 4

Aired: December 07, 2021

E5 - Episode 5

Aired: December 14, 2021

E6 - Episode 6

Aired: December 21, 2021

E7 - Episode 7

Aired: December 28, 2021

E8 - Episode 8

Aired: January 04, 2022

E9 - Episode 9

Aired: January 11, 2022

E10 - Episode 10

Aired: January 18, 2022