In the first quarter of the 22nd century, mankind begins to expand its domain by terraforming the planets Venus and Mars. To facilitate this endeavor it creates a race of genetically engineered worker slaves, called Neosapiens, who are capable of surviving the still harsh environments of the new worlds. Neosapiens are intelligent, strong, need no sleep, and very little nourishment. The Neosapiens’ biggest weakness is that their behavior is encoded in the structure of their brains, which limits their adaptability. This doesn’t prevent them from rising up in rebellion 50 years prior to the beginning of the series’ story line. 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.
In present story line, the biggest threat to humanity is 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 Homeworld’s Congress organizes a new military force that uses “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, begins a new insurrection against Terrans while the Exofleet is in pursuit of the Pirate Clans. This allows 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 focus 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 have to overcome external, as well as internal, obstacles in their fight for equality and peace.