Season 1
01. Episode 1
No details
02. Episode 2
The genius of strategy, the unrivaled presence of Special Forces soldier Park
03. Episode 3
SSU, the strongest of the sea! The 707th Special Lease Team that provokes them
04. Episode 4
The final death match depends on the first eliminated team!
05. Episode 5
Quickly and calmly, anti-terrorist rescue mission!
06. Episode 6
A counter-terrorist rescue operation that involves a death match, you can never lose!
07. Episode 7
40kg mountain march, which team is eliminated in the death match?
08. Episode 8
Navy Union vs. Night Coalition, night coalition operation that puts pride on the line
09. 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