In pursuit of obtaining a time machine to save the world, the boys discover an island on α-Jumbro that’s brimming with the precious mineral known as Dagmatite. They rush to investigate this auspicious find, but the galaxy’s worst bassball team, the Rubonoans, are already there conducting their off-season practice! And the only way they will leave is if the Agravity Boys beat them in a game of bassball! Shouldn’t be too hard, right? It’s just the entire fate of humanity hinging one measly bassball game.