There's no car chase. No gun play. A short foot chase through a street market scene (later referenced, strangely as a "Mall fight") which seems awfully contrived - but that's about it for action here. A Magnum episode does not need action to be good - just look at "Solo Flight", for example (S07E15).. But this one falls rather flat.
This is about Carol, and a dirty family secret about her past. All is kinda resolved at the end of the episode, but even though I'm an avid Magnum fan this has to be one of the weakest, most directionless episodes in the series: the scriptwriters really phoned it in on this one. There was an awful lot of meat left on the potential bone with this episode. I enjoy the odd genteel, quiet Magnum, but this one was wont of substance.
Watch it, enjoy it - as I did. Just don't expect much.