Gumball and his friends must survive in Elmore, which has been exposed to a deadly virus.
A deadly virus reaches Elmore, and Gumball, with his friends, must survive in the apocalyptic setting.
Gumball and his friends (Darwin, Anais, Penny, Teri, Tobias and Rachel) are at a campfire located in the woods that surrounded Elmore. They are sharing marshmellows and telling stories.
Gumball: Guys, this is great! I'm having so much fun at this campfire!
Tobias: Me too! The only thing that would make this better is if our cellphones could work out here.
Anais: That's nice, but I think this campfire is much better without our phones because it really gives us a good experience of what it would be like at an actual campfire. No electronics, just the woods and you.
Rachel: Boring! I don't really care about this campfire, I was just hungry. Now that I'm full, I think I will be going.
Rachel gets up from the log that they were using as a seat, and walks back to Elmore.
Tobias: We don't need her. We can have fun here, right?
Everyone except Tobias: Yeah!
Teri: Okay, now it's my turn to tell a story! I was in the nurse's office...
Darwin: Come on, Teri! You always tell stories about when you were in the nurse's office! I want something different!
Teri, looking annoyed and a bit hurt, sighs.
Teri: I don't have any good stories outside the nurse's office, guys. Sorry.
Gumball: Fine. How about Penny?
Penny wakes up from the tent she had been sleeping in. She left the tent door open.
Penny: What? Oh, story telling. Okay, how about I tell you about this new game I got?
Everyone except Penny: Okay!
Penny: Okay, it's called Kebab Fighter II: The World Fighter. It's really cool! It has a bunch of characters you can use and...
Just then, the group hears a scream from back in Elmore. It sounded like a girl.
Tobias: Whoa, was that...
Gumball: No, it was not Rachel. Everyone knows that in a situation like this, it's never what you think it is.
Tobias: But I know a situation where something from a movie was actually true!
Gumball: Really? Then tell me!
Tobias: Okay, it was from this movie called Explosions, and there was this one scene where...
Darwin: Guys, come on! We gotta check out who was screaming!
Gumball: Who cares? It's probably some stranger who deserved whatever made him or her scream like that. Remember that video we saw in school about karma?
Darwin: Just go already! You too, Tobias.
Gumball and Tobias: Fine...
Darwin, Gumball and Tobias run through the woods to catch up with the rest of the group, who had already gotten to Elmore. A policeman, the Donut Policeman, walks up to them.
Tobias: What happened?!
Donut Policeman: A bomb just went off, and it had some dangerous substances in it. Stay back, and don't make contact with the substance.
Gumball: There's the rest of the group!
The trio run to the group, who are all scared.
Darwin: Guys, who was the person screaming?
Teri: The donut guy said that it was...
A moment of silence passes before Gumball speaks.
Gumball: Don't leave us hanging! Speak up, who is it?
Teri: Okay, okay! It was Masami...