

March 30, 1984
1h 40m
EN
Peter Moffatt
A race of giant Gastropods has taken over the planet Jaconda. Their leader, Mestor, now intends to cause an enormous explosion in order to spread his people's eggs throughout the galaxy, and he kidnaps juvenile twin geniuses from Earth to work out the necessary mathematical equations. Space fighters led by Lieutenant Hugo Lang are dispatched to get the twins back, but they come under attack and Lang is the sole survivor when his ship crashes on the asteroid Titan III. A newly regenerated Doctor and Peri become involved and help Jaconda's elderly former ruler Professor Edgeworth, who is really a Time Lord named Azmael, to defeat Mestor and free the planet's bird-like indigenous people from the gastropods' reign of terror. Azmael, however, sacrifices his life in the process.

Colin Baker
The Doctor

Nicola Bryant
Peri Brown

Maurice Denham
Edgeworth


Anthony Steven
6

Edwin Richfield
Mestor

Kevin McNally
Hugo Lang

Dennis Chinnery
Sylvest

Gavin Conrad
Romulus

Andrew Conrad
Remus

Seymour Green
Chamberlain

Oliver Smith
Drak

BBC
GB