This is part of a series of reviews of Doctor Who in chronological timeline order.

Previous Story: Alien Heart

What a story. It's rare to get stories that technically don't feature the main characters at all, this time in the form of clones. Peter Davison and Sarah Sutton get to show off their incredible range here, especially the former. It's an excellent display of Davison's prowess as an actor. He has all the personality of the Doctor and yet you can tell that he is completely evil, I'd love to see him in a villain role more often.

The reveal at the end was absolutely shocking and fantasticly performed by the two leads. This story has a very bleak ending, but not without a bit of optimism. The real tragedy is that it's unlikely either the Doctor or Nyssa were even aware of this happening.

A great story, a compelling mystery, well-performed and overall a solid bit of drama.

Next Story: Arc of Infinity