Mordecai and Rigby meet 2 Australians kangaroo wranglers. The duo asks the wranglers for a ride to the airport. Since neither Mordecai nor Rigby have any money or anything to trade to the workers, they decided to sing a rap as compensation.
The wranglers, even though they didn't understand a word of the song, accepted and allowed the duo to sit in the truck's tray with the kangaroos. While being driven to the airport, the duo were severely beaten up by the kangaroos in the truck, while the wranglers ignored their cries of pain.