Yeah the end of season 4 is pretty much the saddest thing ever. Rose gets to go live with Human Doctor, but it's still probably not the same, Donna has to spend her whole life trying to remember something that she can't and The Doctor starts all over again with nobody. Just so you know, if you're watching via Netflix, the viewing is a bit wonky from there. Upcoming watch in this order...
The Next Doctor (part of Season 4 on Netflix)
Planet of the Dead (Not on Netflix instant for some reason, IIRC, it's on Amazon Prime Instant if you have that. Skippable and not that good, but if you have to watch everything, go for it)
Waters of Mars (It's own separate entry on Netflix)
The End of Time (Again, it's own entry on Netflix)
After those you can resume the standard viewing, I really don't get why they separated it all like that.
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