Several things happen. Rycliff starts a militia. Dad prototypes another cannon. The women attempt to protect their Way of Life from the Men. The Men try to Have Some Fun. Antics ensue. There is a significant Medical Care of the Regency Era Was Awful theme. Oh, and they shoot on Thursdays. I did not believe the having sex in the sea scene. I've done things like this. Between the cold, the salt, and the lack of lube, yeah, no. Fortunately, Tessa Dare is not one of those authors who attempts to produce believable period dialogue. Even more fortunately, she _is_ an author who embeds consent deeply into all the sex scenes. Yay!
The tale takes a Dark Turn towards the end, but there is, obvs, an HEA and it is emotionally satisfying. I intend to read more in this series and probably other series by this author.