The problem with this story is the awful amount of padding. Some events get dragged out too long for their dramatic weight. A fair amount of the details in the plot feel superfluous. The human guest characters aren't that interesting (and given how well all four actors do in other Big Finish audios, this is a sad waste of talent). It should be cut down to a two-parter at the longest.

In addition, the Doctor and Peri don't do much, even considering the padding. They are almost in the role of witnesses. I wished the core idea had been developed as a short, Doctor-free story.

If you love the idea of complex, interesting Ice Warriors enough to ignore the bad points, go ahead and get it. Otherwise, It stinks.