Today is the rainforest race, and animals have come from all over to compete: a puma team, a howler monkey team, and a spectacled bear team. Then a cute little Armadillo comes along -- she doesn't have a team but she really wants to be in the race. Diego and the viewer join Armadillo's team and set off to win the race. First dodging falling nuts from the Shaky Nut Trees, then Armadillo rolls into a ball to get down the Muddy Mud Hill. At the last obstacle, the Big Mountain, Armadillo digs a tunnel as we sing the 'excava' song, and suddenly Armadillo's team takes the lead. Will they win the race?!