TV LEGO Hero Factory - Season 4 Episode 1 : Brain Attack LEGO Hero Factory - Season 4 Episode 1 : Brain Attack 7.5/10 by 13 users An evil force unleashes alien brains on Makuhero City; the alien brains have the power to turn nice guys into bad guys. Details Casts Posters Images Title LEGO Hero Factory - Season 4 Episode 1 : Brain Attack Alternative Titles ego Hero Factory - Aufstieg der neuen Helden First Air Date 2010-09-20 Last Air Date 2014-01-09 Number of Episodes 18 Number of Seasons 5 Genres Animation, Networks Nickelodeon, Casts Plot Keywords , Episodes List LEGO Hero Factory Season 4 :Episode 1 Brain Attack Brain Attack 2013-03-31 Based around the LEGO toy line of the same name, Hero Factory is set in a place known as Makuhero City. Here, Heroes are built in the Hero Factory...