You have a good start, allright here is the lowdown. Its always interesting to meet new charactors who mysteriously take passage aboard Serenity and this one is clever and likable. You do Mal and Zoe, Kaylee well, Mal and Book in particular. Your rendition of Wash is problematic, he is portrayed as just too annoying. Wash is supposed to be comedic but not irritatingly obnoxious. I also want to talk quickly about River, you haven't done anything wrong yet but remember that "A completely coherant River means writers don't deliver" KatTaya. If River's wits aren't touched then I don't read. It is fine though for her to be lucid some of the time, duh, so you're fine right now, just keep these things in mind in future chapters. Technical error: in the part where Mal is showing Kendrick around the ship he tells him to not go in the shuttle that is being rented without permission. In the next bit he says that there are two empty shuttles, one of which used to be rented. Make up your mind please. :) I like how you refer to Kendrick by charactoristics before we know his name, I like that technique. Keep writing I'm curious to see where this goes and happy to see that the crew's all here.
Riona

Yay.. just yay lol

Hard to believe I'm disagreeing with Leven Kemel, but I think characterization is a little off. Seems a little more owing to other fanfic than it does to the actual series.

Example: we see Wash playing with dinosaurs in the first few minutes of the first episode and we see said dinosaurs on the bridge throughout the series, but that's it. The overt goofiness and constant mentions of dinosaurs is a fanon invention and not a good one.

I do love Zoe's "I figure it mate in ten" though. Perfectly nailed that dry delivery.

Good set-up, and you write well, with a excellent grasp of the characters' voices. Please do carry on!

There'll be more, right? Nice twist at the end!

Nice start. Humor and action.

I like it!

Brian