The Iron SquadSeason 12021 · 19 episodesEpisodes1Episode 12Episode 2The genius of strategy, the unrivaled presence of Special Forces soldier Park3Episode 3SSU, the strongest of the sea! The 707th Special Lease Team that provokes them4Episode 4The final death match depends on the first eliminated team!5Episode 5Quickly and calmly, anti-terrorist rescue mission!6Episode 6A counter-terrorist rescue operation that involves a death match, you can never lose!7Episode 740kg mountain march, which team is eliminated in the death match?8Episode 8Navy Union vs. Night Coalition, night coalition operation that puts pride on the line9Episode 9Who will be the final winner of the night joint operation?! And... SDT & Marine Corps Search Team are back again!10Episode 10There is only one remaining ticket to the semifinals! Who will take over?11Episode 11Three units' desperate struggle for a ticket to the semifinals12Episode 12Seoul Recapture Operation, which unit will advance to the finals?13Episode 13707 vs SSU Semifinal Tournament! Who will win the final ticket to the finals?14Episode 14What will be the strongest unit that will take home the title of ‘Steel Unit’?15Episode 15The Steel Comrades Association is starting! The fierce battle of steel troops for supplies!16Episode 16Exploring the inner thoughts of the crew through Steel X-Files17Steel Unit, an unfinished story!Steel Unit, an unfinished story! Now I can talk! The first unstoppable revelation18Now I can tell you the story behind itNow 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!19TOP 7 of the best battles of the Steel UnitThe Last Side Story of the Steel Unit, TOP 7 of the best battles of the Steel UnitSeason 2Season 3Season 4