Martin Fiske

The planet Argolis, around the year 2290. The Argolins live in a huge shielded city, protected from the irradiated wasteland outside. The planet's survival depends on the tourists their Leisure Hive attracts. But a series of horrific deaths seems to jeopardize that future.

The Doctor, aged by the unstable tachyon machine, finally uncovers the truth about the tachyon generator. And he makes an unexpected ally…

Pangol begins his plan for a rebirth of Argolis — a rebirth that will start by resuming their ancient war with the Foamasi.

Argolis' tachyon machine is unstable. Romana tries to get it working properly, but the consequences could be dramatic.

Professor Loftus returns to St. Swithin's at the same time as Upton, and is appalled at the way in which the hospital is being run.