The Crossovers #6

As the Crossovers come together for dinner, outside their home the aliens, the vampire brides, the Imperiatrix and her army and Mountebank and his robot army all attack each other, thinking the others are their enemies. Alerted by Cubby's incessant barking, the Crossover family watches in surprise and shock as the four groups of attackers finish destroying each other. Not wanting to say anything to each other about the identities of the attackers, the family is scooted back into the house by Carter as the police arrive.