Christopher Bulis writing for the Fifth Doctor and Peri already led to The Ultimate Treasure which is one of the early Past Doctor Adventures that is squarely a miss in terms of a story.  “Hot Ice” fares better, but doesn’t fare particularly well.  It’s a story that is just kind of there, the Doctor and Peri are actually quite well characterized but it’s also the second time Bulis has written a story that feels like the first time Peri is taking a trip in the TARDIS.  This is particularly messy of as tory and ends very much with a Warriors of the Deep style there should have been another way that feels somehow less earned.  5/10.