1 - Episode 1

2 - Episode 2

The genius of strategy, the unrivaled presence of Special Forces soldier Park

3 - Episode 3

SSU, the strongest of the sea! The 707th Special Lease Team that provokes them

4 - Episode 4

The final death match depends on the first eliminated team!

5 - Episode 5

Quickly and calmly, anti-terrorist rescue mission!

6 - Episode 6

A counter-terrorist rescue operation that involves a death match, you can never lose!

7 - Episode 7

40kg mountain march, which team is eliminated in the death match?

8 - Episode 8

Navy Union vs. Night Coalition, night coalition operation that puts pride on the line

9 - Episode 9

Who will be the final winner of the night joint operation?! And... SDT & Marine Corps Search Team are back again!

10 - Episode 10

There is only one remaining ticket to the semifinals! Who will take over?

11 - Episode 11

Three units' desperate struggle for a ticket to the semifinals

12 - Episode 12

Seoul Recapture Operation, which unit will advance to the finals?

13 - Episode 13

707 vs SSU Semifinal Tournament! Who will win the final ticket to the finals?

14 - Episode 14

What will be the strongest unit that will take home the title of ‘Steel Unit’?

15 - Episode 15

The Steel Comrades Association is starting! The fierce battle of steel troops for supplies!

16 - Episode 16

Exploring the inner thoughts of the crew through Steel X-Files

17 - Steel Unit, an unfinished story!

Steel Unit, an unfinished story! Now I can talk! The first unstoppable revelation

18 - Now I can tell you the story behind it

Now I can talk! Accommodation stories told by members, mountain march with 40kg soldiers, Hand-to-hand combat, and octopus...? From the dark history you want to erase to famous scenes and famous lines of your choice. We brought it all, behind-the-scenes story!

19 - TOP 7 of the best battles of the Steel Unit

The Last Side Story of the Steel Unit, TOP 7 of the best battles of the Steel Unit