Invasion from Below
- Episode aired Jan 10, 2014
- TV-Y7-FV
- 22m
After mysterious underground beasts start attacking Antropolis City, it's up to the Heroes of Hero Factory and their newly designed mechs to fight them back.After mysterious underground beasts start attacking Antropolis City, it's up to the Heroes of Hero Factory and their newly designed mechs to fight them back.After mysterious underground beasts start attacking Antropolis City, it's up to the Heroes of Hero Factory and their newly designed mechs to fight them back.