input: TEXT: MAWDRYN UNDEAD BY: PETER GRIMWADE Part Four First Air Date: 9 February 1983 Running time: 24:33 [SCENE_BREAK] TEGAN: What do you mean? DOCTOR: I can only regenerate twelve times. I have already done so four times. TEGAN: So? DOCTOR: Don't you see? Eight of them, eight of me. TEGAN: They want your remaining regenerations? DOCTOR: It's the only way to end their mutation. NYSSA: Is that possible? DOCTOR: With this equipment, yes. BRIG '83: Let's get back to the TARDIS before they become hostile. TEGAN: Come on, Doctor, we've got to get out of here. MAWDRYN: We're scientists, not warriors. We have no weapons. The Doctor can only help us of his own free will. TEGAN: What you want is murder eight times over. MAWDRYN: No. What we desire is our own death. [SCENE_BREAK] GUARDIAN (on scanner): Turlough, my plans are in hazard. This friend of the Doctor's TURLOUGH: The Brigadier? GUARDIAN (on scanner): He is present on the ship in two aspects. TURLOUGH: That isn't possible. GUARDIAN (on scanner): It is forbidden, but not impossible. He has travelled through time in the TARDIS. TURLOUGH: But if the two aspects converged GUARDIAN (on scanner): The instability could destroy everything. You must find the Brigadier who travelled with the Doctor's companions. TURLOUGH: Leave here? GUARDIAN (on scanner): You will obey me. The two Brigadiers must be kept apart. TURLOUGH: What about those creatures? GUARDIAN (on scanner): They are harmless. They only threaten the Doctor. [SCENE_BREAK] MAWDRYN: We did not know that our experiments would bring endless mutation. DOCTOR: You have the regenerator, the facilities of the laboratory. Continue your experiments, find how to reverse the process
  SUMMARY:
output: The Doctor is on the ship and his future looks bleak as he is about to loose all his Timelord abilities to the Mawdryn. Both the Brigadier's come in to the Mawdryns room with the Timelord artifact right as the transfer is starting.