This episode starts with a couple of dock workers (one of whom looks a lot like Captain Highliner) trying to load some fruit. At this point the Man-Bat appears and scares them, although not intentionally. They get scared only because it tosses around some boxes while trying to find the best fruit.
It may have been just me, but right off the start it appeared to be a different colour and smaller. Turned out I was right, as you will know if you watch it.
Even though the episode summary gives away it is not the same Man-Bat as last time, I will not spoil it for you. I will tell you that your first guess as to who it is now will likely be correct.
Overall, this episode is just plain stupid. I mean the Man-Bat is not on a mission or pissed off at anything. I gave it a better than crap rating just because there is some neat DNA testing going on to prove if Batman "screwed up" or not.
Although I did try to give it a 3.5, it won't accept that low a rating from me :-S
Have fun by not watching this one.