Extreme Engineering 'un 6 sezonu 'da mardi 20 novembre 2007 'dan mercredi 17 octobre 2007'a kadar yayınlandı. 14 bölümlerinden oluşuyor, ilkinin adı "Coaster Build Off" ve sonuncusunun adı "Major League Stadium".
Each episode of Extreme Engineering discussed some major construction project, some of them are projects that have already been completed like Hong Kong's airport. Others talked abount projects that are currently under construction like Tuneling Under the Alps. And some episodes talked about more futuristic projects that may never be done like the Transatlantic Tunnel. Most episodes finished by examining some sort of disaster scenario which could threaten or ruin the project that was being examined.