Plot: when Bruce Wayne's friend Ethan Clark tells Bruce that a psychic saved him from a series of disasters, Batman suspects this Nostromos is actually causing the disasters in a scheme to steal a lot of money. Turns out Batman's right.
Nostromos lacks interest because we know right away that he's a fraud. We see the time bomb that sinks the gambling ship, so we know that was sabotage. Ethan's daughter Lisa states her suspicion that Nostromos is behind the disasters almost immediately. Maybe if they had teased the possibility that Nostromos was in some way legit, he would be more compelling. And there no reason he couldn't be, considering that Batman fought an invisible man two episodes ago.
The most interesting character here then becomes Lisa Clark, voiced by Heather Locklear, who rejects Nostromos and pleads with her father to be reasonable. In many ways, Lisa acts the way Bruce would, if Bruce didn't pretend to be an idiot when he's in civilian clothes. She resemble Julie Madison, Bruce's original fiancee from the comics, as the heiress who wants to do more than inherit her wealth, and might have been an good on-going love interest for Bruce, but she's never seen again after this episode.
And then there's the questions that just take you out of the episode. Why does Batman change into his bat-costume BEFORE escaping a plummeting elevator? Why con his way into the Secret Brotherhood when he could just tail Ethan there, as Lisa does? Why are the rings on the model of Saturn honed razor sharp? These are little things, but in an episode as weak as this, it just brings the whole thing down. So, in the end, what could have been a great episode ends up being eh, at best.
One final note, the Gotham Observatory is modeled on the Griffith Park Observatory, famously seen in Rebel Without a Cause. We last saw it in Christmas with the Joker, where it had been turned into a giant cannon. Presumably that was cleaned out before Nostromos moved in.