Okay, I've been dying to write some Spartacus SL's...unfortunately I had a secondary idea for them. A while ago I read several novels that had people from our time jump back to the time of the Vikings. The entire series was incredibly humorous and the idea has always stuck with me.
Now, my idea would be hard to do with only two characters but would still be possible. I was thinking along the lines of a sort of "time cop" idea. Someone has gone back in time to change history...our story would be how our characters go back to fix everything.