This episode is probably one of the more boring ones. Sure, Naruto uses rasengan a few times here, but it wasn't to exciting. Sakura and Lee still arn't much help to Naruto, ending up chasing after some Ninja kids.
Gantetsu has sort of gotten an alliance with Naruto, which actually isn't too much of a surprise because of how he was acting throughout this filler so far.
The kid ninja are very mysterious, though. I'm actually thinking that those kids are probably the kids that Gantetsu saved. (Yeah, I don't think he killed the captain's brother.)
Overall, this installment doesn't seem all to interesting. While a lot still needs to be filled in so far, this episode goes through doing part of it in a rather boring way.