I just finished watching this 15 chapter serial. I'm writing about it here in the "Bad Movies" section because it's cheesy and silly. But it's pretty entertaining, so it could be posted under "Good Movies."
Similar to the 1943 BATMAN serial (which I wrote about awhile back . . . you can find the comments in here if you search for them), the caped crusaders drive around in a regular car - - no budget for a Batmobile, I guess.
The plot involves Batman and Robin trying to capture a crook named "The Wizard," who wears a black cloak and mask and has a contraption that can use to remotely control machines (such as cars). He can also zap himself with beams that turn him invisible (cue scenes of objects floating around on wires).
As silly as this is, it seems to be a slightly more polished production than the 1943 serial (for example, there are fewer continuity errors). You may not want to sit through both of them, but I do suggest to watch at least one (for nostalgia's sake, dammit!)
** SPOILER**
I don't want to give away anything important, but the final chapter is titled "Batman Victorious" (as if you didn't know!)