In the first quarter of the 22nd century, mankind had begun expanding its domain by terraforming the planets of Venus and Mars. To facilitate this endeavor a race of worker slaves, called Neosapiens, were genetically engineered to be able to survive the still harsh environments of the new worlds. Neosapiens were intelligent, strong, needed no sleep and very little nourishment. The biggest weakness of the Neosapiens was that their behavior was encoded in the structure of their brains, which limited their adaptability. That didn’t prevent them from rising up in rebellion 50 years prior to the beginning of the series’ storyline. The rebellion was crushed, but while it did bring about some positive changes for the Neosapiens, it also engendered fear, mistrust and even hatred for Neosapiens in their Terran (human) masters.
The biggest threat to humanity at the beginning of the series were the attacks on space shipping by the Pirate Clans of Saturn, made up of former inmates of penal colonies exiled to the outer planets. To combat this menace the Homeworlds Congress organized a new military force that used “exo-technology” to create powerfully armed and armored mechanical suits called E-frames.
Not content with the status of Neosapiens as a second class race, Phaeton, the Neosapien Governor of Mars, began a new insurrection against Terrans while the Exofleet was in pursuit of the Pirate Clans. This allowed Neosapien forces to conquer the Homeworlds with relative ease, as a first phase to the subjugation and eventual elimination of all Terrans.
For the remaining two seasons of the series, stories focused on the exploits of Able Squad, an elite E-frame unit, and their efforts to free humanity from the tyranny of Phaeton’s rule. Often at the heart of the action, the wide-ranging personalities of Able Squad had to overcome external, as well as internal, obstacles in their fight for equality and peace.