The Doctor goes into the Gallifreyan matrix to prove his innocence in an assassination conspiracy.

I'm not sure why I liked this one. There's a nice sci-fi concept or two, but the story is kind of a mess that doesn't tie them together or clearly explain them. There's an almost Rambo-like action sequence, but it takes place in a virtual universe with no established physical rules. It's been a few months since I've seen a good Tom Baker story, though, and I guess it's just what I wanted to see. ( )