Season 3 Episodes20
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Ranked #13 of 13 in Season 3•−0.9 vs season avg
Track the flight of a Tomahawk cruise missile from launch to target and discover the technology that makes the missile the ultimate surgical attack weapon.
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"How it's built: Steel" is episode 13 of MegaStructures season 3. It scored 5.9/10 from 16 votes, ranking #13 of 13 episodes this season (season average 6.8). It aired on September 21, 2006.