The Doctor, Amy Pond and Rory Williams are in hiding in a Sentork Science Hanger. They are watching crates of Golesterkol weapons (the worst weapons ever) being moved around, but they are discovered. At cannon-point they are taken away to the "Professor", a collector of Golesterkol weapons for decades. As agreed, the Professor pays two thousand Ohgs for the delivery of the last two remaining Golesterkol weapons and completes his collection. The Doctor rages at the Professor when he talks of collecting them only to improve them further.