Lee Adama lived to be 98 years old, and when he finally croaked, he was the very last of the “non-natives” to be buried. But of course he had had ample time to teach his sons how to maintain and pilot the Colonial Raptor: that last remaining ship could prove very useful someday if there was a big flood or some other natural disaster and lots of helpless villagers needed quick evacuation.
It is now eighty-three years after the arrival of the Galactica crew on Earth, and a ruthless tribe comes to kill the last surviving Son of Adama. Evil Warleader Kuhm takes the Raptor and then tortures two of Lee’s grandsons until they teach him how to fly the Raptor... Let’s say generator life on these things is more than eighty years, right? Just play along.
So, Warleader Kuhm uses the Raptor to subdue many, many other tribes, and becomes some sort of cruel Caveman God-King.
The PCs are a bunch of great-grandsons and great-granddaughters of other Galactica crew members (they can choose which ones), and with the help of their domesticated saber-toothed cat named Gaius, they decide to go and steal back the Raptor that’s rightfully theirs. It’s a perilous mission indeed; when not airborne, the ship is constantly guarded by a hundred warriors of Kuhm’s own tribe. But at least the Raptor’s guns and Gatling cannons cannot be fired anymore (those ran out of ammo years ago)...
Other plot hook: Cylons come back! They have laser blasters. PCs have spears. Stay positive, guys – and good luck!!!