Dead Letter
- Episode aired Mar 19, 1979
A large UXB in the London Underground brings Ash face-to-face with a new type of fuse. Meanwhile, Susan may not be forever lost.A large UXB in the London Underground brings Ash face-to-face with a new type of fuse. Meanwhile, Susan may not be forever lost.A large UXB in the London Underground brings Ash face-to-face with a new type of fuse. Meanwhile, Susan may not be forever lost.