Yes they are in order, but a portion of the last few could be watched prior to the first, if you're okay with spoilers lol But if you wanna watch em in order, go for it. I'll admit the first two-parter episodes (there are 2 two-parter episodes) can be a bit taxing but I feel that way about most episodes cut into two pieces. But you should go for it because Nine and Rose are so amazing at the end of everything and it breaks my heart. >__<

Ahem new topic or I'll die?