TV LEGO Hero Factory - Season 1 Episode 3 : The Enemy Within LEGO Hero Factory - Season 1 Episode 3 : The Enemy Within 7.5/10 by 13 users The evil Meltdown sprays Preston Stormer with a substance that causes him to go insane and threaten his teammates. After he breaks out of the confinements of the Hero Factory, William Furno has to find his leader and save him from himself. Details Casts Posters Images Title LEGO Hero Factory - Season 1 Episode 3 : The Enemy Within 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 1 :Episode 1 Trials of Furno Trials of Furno 2010-09-20 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... LEGO Hero Factory Season 1 :Episode 2 Core Crisis Core Crisis 2010-09-21 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... LEGO Hero Factory Season 1 :Episode 3 The Enemy Within The Enemy Within 2010-09-22 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... LEGO Hero Factory Season 1 :Episode 4 Von Nebula Von Nebula 2010-09-23 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... LEGO Hero Factory Season 1 :Episode 5 Ordeal of Fire Ordeal of Fire 2011-04-10 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... LEGO Hero Factory Season 1 :Episode 6 Savage Planet, Part 1 Savage Planet, Part 1 2011-09-05 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... LEGO Hero Factory Season 1 :Episode 7 Savage Planet, Part 2 Savage Planet, Part 2 2011-09-06 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... LEGO Hero Factory Season 1 :Episode 8 Breakout, Part 1 Breakout, Part 1 2012-04-08 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... LEGO Hero Factory Season 1 :Episode 9 Breakout, Part 2 Breakout, Part 2 2012-04-09 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... LEGO Hero Factory Season 1 :Episode 10 Brain Attack Brain Attack 2012-03-13 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... LEGO Hero Factory Season 1 :Episode 11 Invasion From Below Invasion From Below 2013-01-09 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...