1987-09-28 • 1h 40m

The Rani has returned with another malicious scientific scheme. Taking advantage of the post-regenerative trauma the recently regenerated and unstable Doctor is going through, she hopes to achieve control of an approaching asteroid composed entirely of strange matter. Can the Doctor figure out he is being used for the Rani's evil experiment, and what is behind the door the Rani won't allow him past?

Directors

Andrew Morgan

Writters

Jane Baker, Pip Baker

Editors

Jane Baker, Pip Baker, Hugh Parson