In the video, the narrator and his friends plan to prank the narrator's brother, Karl, by covering his house with sticky notes while simultaneously filling their friend CJ's house with a massive amount of elephant toothpaste foam. The prank involves CJ thinking he's pranking Karl but getting pranked himself. They successfully carry out the prank, creating a spectacle of foam erupting from CJ's house, and later reveal they've bought CJ a new house to make up for the damage caused. They assure that they are also fixing Karl's house after the prank.
Sure, here are the key facts extracted from the text:
1. The goal is to fill the brother's house with elephant toothpaste as a prank.
2. The prank is in response to the brother covering another person's house with sticky notes.
3. Mark Rober is brought in as an expert on elephant toothpaste.
4. CJ is involved in sticky noting another person's house.
5. They plan to fill the entire house with elephant toothpaste.
6. They have 14 barrels of elephant toothpaste for this prank.
7. The prank involves breaking windows.
8. CJ's house gets filled with elephant toothpaste as a surprise.
9. CJ is given a new house as a replacement.
10. They are also fixing CJ's old house.
These are the key facts without opinions or additional commentary.