Chaos has found a way to strike at the real-world. And now Bye-bye has just one week to return to the World Tree or more players will be made to suffer the same real-world consequences. Hoping to find answers, Bye-bye races across the country to the headquarters of the Seed Inc., the makers of the World Tree Online.

Back in the World Tree, the Endless Savanna awaits. A place often called the province with no end. With tribal politics, twisted beasts and monsters, and a deadly slave ring, there are more than enough dangers waiting.

Bye-bye and his friends will fight as they always have, but it still might not be enough. Will the Endless Savanna be the end of their winning streak?