Could be as simple as a plane crash or we could borrow from the recent Kong movie and say the expedition was plotted beforehand, but everything goes tits up, and our characters only have x-amount of days to reach the designated extraction point from wherever they've washed up. I'm a-okay with either option.
I've wanted to use Lauren Cohan for a while now, so I'll be starting with her. Her current iteration is a failing actress, but that will probably change to best suit the storyline. I'm no stranger to playing multiples and males, as well, so if we initially want the group to be larger (with the option of killing off NPCs), it's no problem.