AU-Story: Following the events of Sleeper (s07e17), Clark faces a threat that will defy his life as he knows it and everyone around him.
"What if we're the last hope? The only ones who can fight for our home … and what if everybody out there is waiting for us to do that? To go out and rescue them… to show them the way… That's a scary thought. That's a burden… I think we can take it on. I think we can do it." – Chief Medical Officer Annella Ral, U.S.S Enterprise 1701-J