Full Metal Alchemist: Brotherhood ep. 5-6
This show is pretty damn good, but man, does it have some serious emotional whiplash in its presentation.
it will get better about that, as stated before the first 12 eps of brotherhood cover the first 25 or so of the original series. the end result is a lot of stuff is glossed over or quickly covered that can result in some very odd pacing. Once it gets to the stuff the original didn't cover the pacing evens out a lot better.
I am actually hoping you fall in love with FMA, and want to watch more and then watch the original, as I am curious to see someone's reactions to watching brotherhood and then the original.