It's Potter's anniversary. While Potter writes home, Frank and Hot Lips have a wood carving made for him, and Radar rescues a horse and makes him a present of it.

England, 1911. The TARDIS is drawn off-course and lands in the country house of archaeologist Marcus Scarman. But what did Scarman unearth on his last visit to Egypt, and how can the Doctor defeat his most powerful foe yet - Sutekh, the God of Destruction?