Margaret Aase

Martin Johnsrud Sundby has filled the arena with 56 fearless celebrities. Through 55 competitions, they will fight to become "system man out."

Contestants must keep their cool while solving each task as quickly as possible.

Gross motor skills are just as important as fine motor skills, and every day offers a new opportunity to compete in a completely new discipline.

Fourty-four celebrities throw paper airplanes, 43 calculate muscles weight, 42 calculate five minutes, and 41 resist an unexpected temptation.

Sixteeen contestants have already left the competition, but who will be the next four?

It is not always as wise to be on a team with others, which "Sisteman ut" constantly proves to the participants.