If you want! I haven't figured out anything beyond 'our characters are stuck in a pair of jail cells in a Marine base, set to be executed.
Hmm, some ideas for the Arc in general: our characters start chatting, then they escape (already have something in mind, since I imagine your character will be caught in seastone, and thus unable to do much of anything. Then, they fight their way out, tussle with a couple officer Marines and escape into the night.
Next arc, perhaps they end up in one of the smaller towns on the island, the Marines still on the hunt while they try to find a way off, perhaps running into our next character? I don't have anything in mind though, but nothing's set in stone until its posted, so feel free to toss me some ideas to flesh it out!