The Boys were at Tweek's house writing up a speech about corporations, when they discovered Underpants Gnomes stealing Tweek's underpants. They took the opportunity to ask the gnome about corporations, and were invited to the kingdom. There, the boys learned of the three phases of making money (albeit with a missing Phase Two), and were offered an explanation on corporation takeovers for the price of underpants.
A minecart which fell off track killed Kenny, but the boys were focusing on their scripts instead, showing indifference despite the gnomes exclaiming about the accident.
The kingdom can be accessed in the middle of a dark forest, through a secret door built into a tree.
There is a large cavern at the center which stores all of the stolen underpants. Minecarts are used as a mode of transportation.