Fight Of The Rutans

This is the second story from Season 18.
==Story==
The Tardis travels to Ruta III with the Doctor sorting out a peace deal on behalf of the Time Lords only to find the whole trip is an ambush. What makes matters worse is the Sontarans finally overcome the sky trenches that have held the planet at bay for 10,000 years. What a war at stake it is.
==Cast==
The Doctor - Adrian LesterSusan - Lydia West
==Behind The Scenes==
This episode would be written by Kate Herron.