Every year I run a session from Into the Nexus called the Slave Ship escape. What usually occurs is I have 15-20 people who are slaves on an elven watership and must escape or be killed when they get to port.
This year I plan to add a little variety, at least at the Dragon*Con Session.
The plan is that I will have my players as usual be level One characters with no weapons or items of any kind. They will have to break free, over run their captors, and steer the ship to a safe harbor.
The twist this year will be that my helpers will be playing the crew. I will also allow any veteran players to play a crew member as well.
I will up the body count as opposed to previous years as well.
Be prepared to die and die in a horrible manner.
I hope to see you there at the end of August.
Ta
J
Misdirected Awesome Games. 
August 1, 2012 at 2:00 am
So is it worth it to sign up for more than one session? Are you running different scenarios at the different sessions?
August 1, 2012 at 2:15 am
Most people sign up for multiple sessions. Friday is a one shot. Saturday & sunday are two parters that allow people to pop in and out if needed. Usually people stay for both sessions since I get the room as late as I need it and it makes for a great gaming session.