The Doctor and Martha Jones awake in a strange hall filled with artifacts arranged in a meuseum. The Doctor notices that the artifacts are all from his past as the collection is dedicated to the Doctor. But the curarator has a different plan as he wipes the Doctor's memory. Martha discovers that the Doctor gains memories back when he handles one of the artifacts in the form of a flashback to the events surrounding the artifact. But the curorator turns up the heat on the Doctor.