They are claiming that these are all from the Season Premiere:
...to me it looks like the whole Comic-Con trailer, just split into four different videos.
If they are correct and all of those scenes are just from the first episode....WOW! They're starting off with a bang!! Maybe there is some truth to all the hype from the crew, since in almost every interview so far they all mention that "Things get crazy..quick."
Maybe a 2-hour premiere?! I don't see how all that could happen in just one 60 min. episode, especially since they said, specifically, that there are many red herrings throughout the Trailer.