Mystery of the North Pole Penguins?.The Wild Kratts hear from Wild Kratts kid Nua that there are penguins in the Arctic, where the birds are not supposed to be. The team must investigate this mystery and get the "lost" penguins back to where they belong. They learn that the reason penguins do not live in the Arctic is that they are not built to deal with land predators there like Arctic wolves and polar bears. Eventually, they learn that Donita is the one that put the penguins there and demand she gives them the exact location where they came from.