Firstborn is that Worf/Alexander episode of The Next Generation that featured an Alexander from the future coming back in time to make his younger self become a warrior in order to prevent the murder of Worf. All in all, it's actually an interesting episode which is something akin to Deep Space Nine's The Visitor although not nearly held up to such high esteem. It is an Alexander heavy episode, which isn't necessarily a good thing. While this isn't as bad as a Fistful of Datas or Cost of Living, it isn't great in hindsight. What makes it even less interesting or relevant is that Alexander later appeared in DS9 having not taken the path that the future Alexander here was concerned about. It features a very brief cameo from Quark, as the Enterprise crew are investigating the actions of the Duras sisters and call on him to find out some information. He appears for a single conversation on the view screen of the Enterprise. But the guess the point of this episode wasn't to have it be a crossover. It's an interesting take on the idea proposed by The Visitor but misses out because it didn't have Tony Todd.
