Too many flashbacks, poor dialogue and acting. The flashbacks are often irrelevant and adds nothing to the plot.
There are many inconsistencies. Where did the extra gray sweater come from? She dived to the bottom of the lake to retrieve from bags from the plane and was down there for more than 5 minutes without drowning. How is she still physically able with little no food or water?
It seems too unrealistic overall. I couldnt make it past the 2nd episode.