Natureza is on the ice cap conducting a polar bear study. She still has one last bear to tag but it's too fast. So she needs a snowmobile pilot to help her approach and tag the beast. It's a perfect mission for Grisù who is no snowmobile pilot, but can adapt to anything and is impervious to cold! As he lands on the polar cap, Grisù unwittingly wakes up the napping bear and is chased after by it. He gets out of his bind thanks to Natureza. As they're getting ready to tag the bear, Grisù, unwittingly again, burns the snowmobile engine. The mission seems compromised, but a firefighter never gives up! Resourceful Grisù uses his wind-filled parachute to pull the snowmobile and thanks to him, Natureza ends up tagging the bear.
