Battle of the Ood Sphere

The Battle of the Ood Sphere was a battle during the reign of the Second Great and Bountiful Human Empire, and resulted in the abolishion of slavery in the Empire. (DW: Planet of the Ood)

Origins
Throughout the 200-year slavery of the Ood, the Friends of the Ood had fighting for the freedom of the race. However, thanks to the manipulation of the Ood's physiology and capture of the Ood Brain, the Ood appeared to enjoy their slavery and the Friends were considered strange in their views.

However, some members of the Friends of the Ood managed to infiltrate the ranks of Ood Operations and sabotaged the enslavement facility. The containment field around the Ood Brain was lowered, and the Brain's subconscious slowly infiltrated the Ood on the Ood Sphere in the form of what the Humans considered a disease that they called "red-eye". This disease made the Ood violent and anti-Human. (DW: Planet of the Ood)

The Battle
Red-eye soon spread through the Ood on their their homeworld, and they escaped from the containers in which they were to be shipped offworld. Meeting the Human security staff of the facility, they attacked them. Although only armed with the electric fields from their translation spheres, the sheer number of Ood managed to overwhelm the Humans even though the latter were armed with long-range guns.

The battle raged around the facility as, in Warehouse 15 (where the Ood Brain was being kept) the infiltrator from the Friends of the Ood was tossed by Halpen into the Ood Brain, which consumed him. Sigma, the only Ood not participating in the battle, helped the Doctor and Donna Noble to deactivate the detonators primed to kill the Ood Brain after Halpen was converted into an Ood thanks to chemicals that Sigma had placed in his drinks for the past few years. As the Ood Brain was released from its containment field, the Ood stopped fighting the Humans, who stopped in wonder at the Ood's freed telepathic song. (DW: Planet of the Ood)

Aftermath
The Ood's song was heards through the three galaxies of the Empire, and people realised that the Ood were people too and let them free. Ood slavery was abolished and the Ood were allowed to live on the Ood Sphere in peace. (DW: Planet of the Ood)