Decent return of the Sontarans

This is probably the most unusual story in Four's era, as it is the shortest, and is the only one fully on location as well. For the great return of the Sontarans, it misses the mark, by having Field Major Styre only really appear in Part 2, so he can't really do much in the role. It doesn't help that this has extremely forgettable side characters, and that Harry and Sarah don't really do much. It is a real shame that this was Kevin Lindsay's final role, as I still believe he is the best Sontaran actor. The fight at the end is boring, and the plot has a couple of holes in it, mainly focusing on why does the Sontarans not rebel against what happened? Not the worst story in the world, but it isn't one people think about for the Fourth Doctor's best stories.