All I can really think is that this episode should have been a two-parter. I enjoyed everything until the ending, which was incredibly rushed, and I felt that the bad guy came out of left field. Who are these aliens? Why do they want to kill the humans? Why do we give a shit? Oh, and the ship is automated, so the Doctor can just wave his screwdriver at a computer screen and make everything better. Really lame. The episode should have ended right after they boarded the alien ship with a big TO BE CONTINUED.