![](https://tardis.guide/wp-content/uploads/2008/04/planet-ood.jpg)
Doctor Who S4 • Episode 3
Planet of the Ood
The Tenth Doctor takes Donna Noble to her very first alien planet: the Ood Sphere. There, the Doctor encounters the Ood once more, and red-eye strikes again. But what is causing it this time? He and Donna soon learn the horrible secrets kept by Ood Operations, and they discover just what mankind is capable of. Elsewhere, what is the secret Warehouse 15 holds within its walls? The Doctor arrives, and everything will change. The revolution begins.