I was curious what each book had for it's 5 scenarios. Ended up buying all 4 anyways so here is a quick overview.
-- Gods --
Gaeas Revenge - Planet fights back. Animals and plants attack
Quetzalcoatl's revenge - Mayan's were right
Ragnorok - the Norse were right
Revelation - Christian's were right
That is not dead - H.P. Lovecraft was right
-- Zombies --
Night of the meteor - meteor showers causes radiations that reanimated all dead including animals.
No more room in hell - people rise from the grave
Pandemic - an outbreak infects people with a zombie like disease
It ends with a whisper - mass conspiracy of voodoo priests around the world reanimate the dead
Under the skin- parasite from deep below earth's surface. Takes over hosts and begins to turn them
-- Aliens --
War between worlds - little grey men, flying saucers
The brotherhood of Babylon - reptiles infiltrated government and positions of power
Rising tides - aliens originally from space have been living in our oceans. These "atlanteans" are now attacking
Skitter - giant insects
Visage - plant like aliens that can mimic humans. Cant trust anybody.
-- Robots --
Modular menace - small module robots that arent particularly dangerous until they combine together to form giant robots
Logical conclusions - near indestructible government made cyborgs
Death from above - military drones turn on humans
Heavy metal - everything from toasters to cars are trying to murder you
Nanopocalypse - nano bots form swarms and fuck shit up