Sigma Station. The ultimate luxury hotel, in the far reaches of space.

For one small group, a tour of the Horsehead Nebula is meant to be a short but stunning highlight in the trip of a lifetime.

But when a mysterious ship destroys Sigma Station and everyone on it, suddenly their tourist shuttle is stranded.

They have no weapons. No food. No water. No one back home knows they're alive.

And the mysterious ship is hunting them.