DiPietro creates a convincing atmosphere on the trading floor in The Good Guy, in which colleagues act alternately as allies and competitors, chasing the big bucks, with ethics as an afterthought (if that).
These are high-quality mystery-thrillers, made for British television but better than most American cop films, with more going on than the case that seems to be at the center of each film. But there are three of them.
I suppose that, if you haven't seen District B13, this sequel will amuse and excite. But your time is better spent tracking down a DVD of the original, which was a highlight of a rapidly deteriorating genre.