A Victorian scientist and his young American backer set off in their new earth-boring machine with a short test on a Welsh mountain. Unfortunately the thing is rather more powerful than expected and they end up in an enormous cavern at the centre of the earth. Here they find a race of humans enslaved to evil oversized prehistoric birds with extra-sensory abilities. The travellers decide they can be some help, the more so as at least one of the slaves is very eye-catching.
Release Date: 1 July 1976Runtime: 89 min
Stars:
- Andee Cromarty
- Anthony Verner
- Bobby Parr
- Caroline Munro
- Cy Grant
- Doug McClure
- Godfrey James
- Helen Gill
- Keith Barron
- Michael Crane
- Peter Cushing
- Robert Gillespie
- Sean Lynch
Director: Kevin Connor
