So who’s this perishin’ apple-cheeked cockernee urchin then? Why, it’s Ace! And she joins the show in 1987’s Dragonfire, which mercifully closes Season 24.

It’s a frosty fable involving a wobbly-headed ANT, some woeful ice statuary and a frigid frozen food salesman.

A screamer leaves, a street yoof joins, a permed old rascal returns, and the Doctor reveals that he is in fact not half-human, but half-lemming.

Who is the little girl (and why)? Does it really take 3,000 years to set up a moderately successful branch of Iceland? And would you buy a fish finger from a homicidal maniac?

Jim and Martin ponder these questions and more (e.g. “Isn’t there something better on another channel?”) so join them as they break the ice and chase the dragon…