You remember how four Charming Princes famously rid the world of an evil witch? True, for some reason this did not add to their popularity, or peace of mind either. To be honest, Liam, Frederick, Gustav and Duncan are completely confused and depressed: whose personal life is not going well, who is not writing a book, who is being made fun of by the family... And so on. It's time for the Princes to remember that they are heroes and defeat some villain again. In this case, it is advisable to get some kind of treasure - for example, the Sword of Erinthia. To begin with, Princess Rosehip is ready to play the role of a villain! And along the way, the Robber King, a ferocious dictator, a huge snake and even the famous circus of the Jullico brothers will join in! The League of Princes is preparing to take on the challenge again - let's see how it turns out!