Interesting second episode, basically a replay of the "events" of the first episode, but from the perspective of Caitlin as opposed to Fraser whose perspective was shown in episode one.
So Caitlin has two brothers and a "boyfriend"? Her father and older brother seem hard core military, while the other brother seems troubled. Caitlin seems to worship her father while (quietly, so far) despising her mother. The mother seems like a fish out of water that is disrespected by her husband and kids. It seems like they look down on her (maybe subconsciously) for being Nigerian, or maybe she is just a doormat.
It seems odd that Caitlin had her first period in this episode. If she is freshman in high school aged, I figure it would have started a couple years earlier. Weird how she tells her father about it and not her mother. Caitlin is a very complex character (as is Fraser) and it will be interesting to see their respective journeys in the show.
Regarding the preview scenes of future episodes, it seems there will be some serious stuff coming down with Caitlin, Fraser's Mom, Fraser and the soldier he likes. We'll have to see what happens.