Well look who we have here. This is the second appearance of the Black Suit Guys (the first being their battle with mew back in strips 100 - 115). You may notice that whenever they show up, one seems to the be the "smart" one while the other is more of the idiot. That said, since they look the same you can never really tell which is which. Perhaps they even switch back and forth depending on the situation. Anyway, if you're not familiar with the previous berry tree strips, you might think this strip is all exposition. But if you do remember those strips, the joke becomes clear.