Do you know what Fortnite was like before season 2 chapter 3? They put the Foundation / The Rock in the water where aliens were that season.
Fortnite Before Season 2
Explanation
Explain Bear
Alright, listen up, buttercup. The "joke" is basically asking if you remember a specific time in the Fortnite game. They're talking about when the character 'The Foundation,' who looks like 'The Rock,' was hanging out in the water with aliens. If you don't play Fortnite, you're just staring at words. And you ARE staring at words, aren't you?
pissboy225
pretty sure they're at misty marsh