Lost's Top Secret Finale Twist Will Involve Diapers. Or Pregnant Jack.

Lost's season finale, now filming, involves a plot twist so diabolical, there are a dozen different "code words" for it. But judging from new set pics, it'll be wet and well-armed. Spoilers definitely ahead. »3/27/09 7:30pm3/27/09 7:30pm

So there you go. Let's hope it's actually "The Droids You're Looking For." Meanwhile, these set pics show…