Man's Genesis

A man tells his grandchildren about prehistoric man. Weakhands is unable to court a woman because of his physical weakness. Humiliated by Bruteforce, he bumps into Lillywhite, who has also been cowering since her mother died. But when they venture out in search of breakfast, Bruteforce separates the couple and sends Weakhands scrambling into a cave. There, he hits upon the design for a club: A rock on the end of a stick. With this equalizer, he soon vanquishes Bruteforce and wins Lillywhite back again.