||I managed to miss the first part of this one, but I think I remember it from the last repeat cycle. Still, I'll try to ignore that and just review this episode. It was a curious premise, but got a bit tied down in paradoxes and I found bits of it quite hard to follow. That suppressed the tension, and I lost interest. I was slightly puzzled by the behaviour of the photon torps at the end. They seemed to take an inordinately long time to get ready (reloading a submarine's torpedo tube using block and tackle takes only about fifteen minutes). Then, I'm not sure how the explosion was redirected, but I assume that it was some sort of 'shaped charge' effect. Still, there were some very nice touches. The characters rehearsing "A Midsummer Night's Dream" was good. Clemens came off as barking mad, but somehow believable for who he was. The nicest touch was when he deliberately left his watch in the cave, just so that it could be found in the future. It almost made a 3, but not quite.