Off the bat got to let people know there could be spoilers for any show that has "apocalypse" feel to it. Walking Dead, Falling Skies, Jericho...et al... I am intrigued by how groups react to these conditions. In shows like Walking Dead you have no trust between groups and when one groups sees another it is very standoff-ish. Sometimes they join up sometimes they remain adversaries. In shows like Falling Skies whenever they come across "survivors" they immediately are trust worthy unless they give the reason not to be. I wonder if this is due to the cause of the apocalypse being man made (zombies, contagion, nuclear war) or alien invasion. In the alien invasion scenario groups seems to be more willing to join together to fight a common enemy, even though you know at some point you are going to have to compete for resources. Off the bat on survival shows they are already in survival mode. Always worrying if the new group is after food or weapons. It really gets me curious how characters are written to react. In any circumstance I think I would be trying to join up and create a "safe haven" no matter what. In a scenario like alien invasion sure you are more at "war" then if you are just concerned about infected or zombies. I think the zombie scenario of getting to an island is best option.