Publisher's summary Edit
Space Station Hamlyn is under siege. Thousands of small metal creatures are flying through space, sent by silver warriors to burrow inside the station. The crew's only hope is a slightly scruffy-looking stranger, with a recorder and a mysterious blue box . . .
to be added
- Although they do not directly appear, it is indicated that the Second Doctor is travelling with Jamie McCrimmon and Zoe Heriot at this time.