Choosing a holiday destination is always a tricky thing, especially when you are using a less than reliable time and space machine.

This week, Paddy and Tricia follow the TARDIS crew as they arrive on the planet of Argolis after their first attempt at an excursion doesn't pan out just as they hoped. However, unseen forces are at work on Argolis that pose a danger to an experiment which is a crucial stage but could save the dying Argolins. Will the two Time Lords be able to save the nearly extinct race without succumbing the dangers that prowl the corridors of The Leisure Hive?