Six married men will be dropped on an island with one car and 3 kids each for six weeks. 

Each man must take care of his 3 kids; keep his assigned house clean, correct all homework, complete science projects, cook, do laundry, and pay a list of 'pretend' bills with not enough money.

There is no fast food.

Each kid will play two sports and take either music or dance classes.  Each man must also take each child to a  doctor's appointment, a dentist appointment and a haircut.

He must make one unscheduled and inconvenient visit per child to the Urgent Care.

He must also make cookies or cupcakes for a social function.

Each man will be responsible for decorating his own assigned house, planting flowers outside, and keeping it presentable at all times.

The men will  only have access to television when the kids are asleep and all chores are done. 

The men must shave their legs and wear uncomfortable yet stylish shoes.

During one of the six weeks, the men will have to experience unexplained mood swings and cramping.

A test will be given at the end of the six weeks, and each father will be required to know all of the following information...each child's:
birthday,
height,
weight,
shoe size,
clothes size,
favorite color,
middle name,
favorite food,
favorite song,
biggest fear, 
and what they want to be when they grow up.

The kids vote them off the island based on performance. 

The last man wins only if...he still has enough energy to be intimate with his spouse at a moment's
notice.

If the last man does win, he can play the game over and over and over again for the next 18-25 years.