Summary

A frozen creature found in 1906 Manchuria goes missing aboard the Trans-Siberian Express while under the care of archeologist Prof. Caxton (Christopher Lee). Seems the ape-like creature is using supernatural powers to turn the train's passengers into zombie slaves. Now he's murdering them one by one, and Caxton will need the help of his rival, Dr. Wells (Peter Cushing), to stop the the mind-controlling killing spree.