I really like this episode. The fish out of water stuff is great fun, and there's also some lovely emotional moments. It's more of an inner conflict, compared to the usual monster-of-the week. My one gripe is that Diana Holmes' decision to leave Owen and fly back through the rift is all very sudden. It would maybe have worked better had they used this episode to write out Owen and he had gone with her, with the idea that they could go off together on a journey through the rift seeded throughout the episode.