Big chronological problem here. At the conclusion, young Seth appears to be about ten and Kyle in his mid-twenties. Their mother died in the plane crash in S1 which, adding the five-year
jump in S5, would have happened nine years before, making Kyle nineteen.
- Seth died when he was 8 and his mother died in 2006. If Seth was in his mid 20's in 2014, that means that his mother died when he was a bit older than 8.