For years, Callahan's was the place where friends met to have a few drinks, tell a few jokes, and occasionally save the world. Until that unfortunate incident with the nuke a few years ago. But Jake and his wife have opened a new Callahan's and all the regulars are there--Doc Webster, Fast Eddie, plus the usual talking dogs, alcoholic vampires, aliens and time travelers. And as a different type of alien flashes through space toward the bar, it might just be time to save the world again.