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Watch LEGO Hero Factory - Season 4 Episode 1 Online!:

An evil force unleashes alien brains on Makuhero City; the alien brains have the power to turn nice guys into bad guys.

Release Date: 2010-09-20
Seasons: 1 2 3 4 5
TMDb: 7.5/10
  • Country: US
  • Language: English
  • Runtime: 30

Other episodes for this season

Brain Attack
Episode 1 - Brain Attack