Episode 123 - Arc of Infinity

After many adventures, The Doctor and Nyssa take time to repair
the TARDIS. Little do they know, a shadowy power from The
Doctor's past is hunting him down and will not stop until it has
him.


This week, Paddy and Tricia follow The Doctor and Nyssa as they
are caught up in a web of intrigue that has Gallifrey at its
centre. Can they find out who is hunting The Doctor and what
their connection is to the powerful Arc of Infinity?