Your wish is granted! There are four chapters.
https://multimedia.scmp.com/culture/article/spanish-galleon/...
https://multimedia.scmp.com/culture/article/spanish-galleon/...
https://multimedia.scmp.com/culture/article/spanish-galleon/...
As for the "enemies," they were little more than pirates, brigands, and otherwise despondent vagrants looking for a bit of self-help justice (helping themselves to the spoils of thievery and robbery.)