Ok, so, The Stones of Blood was bad. The story was stupid, the aliens were bad, and the supporting cast were all just terrible. It was really painful to get through this one, heck about halfway through episode 1 I basically couldn't stand it. Outside of The Doctor, Romana and K-9 I basically hated every moment of this story. Its not the worst 4th Doctor story (for example, The Android Invasion and The Robots of Death were both a lot worse) but this was still very bad.