Cast
            
            
                
            
            
        
        
             Genres & Description
            
            
                
                
                
                  5.2 / 10
            
            
                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.
            
       
            
            
            
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