Two years have passed since the events of the previous film. Now, when two friends appear, everything changes. Their names are Bruska and Umnik. They end up in the house of the family of Synuli and Sredniy as new brother and sister. But Sredniy begins to look for information about them after their life in the new house and find out who they are and where they came from. Meanwhile, Mr. Sax became the new owner of YouTube after the death of Sergei Vrazhko, posing as his undisclosed son. But suddenly a new threat, worse than his, looms over the entire YouTube corporation and all of humanity. Will the new and old heroes be able to cope with the evil? Will they be able to put an end to YouTube, which resumed years later, once and for all, or not?