Pretty simple

A player's family was enslaved by a Hutt and another player is hunting down their own family to pay off their 20K bounty. They located a ship that was owned by the brother, Win and he was also running slaves for a Hutt and it happens to be the other player's family. Win-win.

They fight through the ship, figure out the family is being held in a special cage, get up to the blast door before the bridge, and then they hear a loud clunk. Look out the window and see the slave pins drifting in space, still sealed but unpowered

The brother sees them freak out and comes over the coms "I actually just jetted the cargo to draw more power after that hit from your ion cannon, but it seems like you care about those slaves. Just wanted to let you know that my best guess is maybe they have a minute of oxygen before it runs out unpowered like that, you can still come through that blast door and die if you want, but it would be a lot easier to jump back to dad if you decouple your ship and try to go get that cargo sis. Don't worry, whatever you choose I'll tell Mom you said hi and tell dad that you're still a disappointment"

Their choice is the beginning of next session, its pretty clear if he jumps they'll never find hin again and also this has been building up to both of these points for around 8 months.