As a for fun one-shot kind of thing, take about six OC's (Preferably from different projects or ones who don't interact much), if you don't have that many then just make some up. Got it? Done? 

Ok.

They've crashed landed on a desert island, they are stuck there for one year before they get rescued. 

What happens?

Whose making it out alive? Whose taking charge? Who takes on an antagonistic role?