On the premiere episode, a disorganized, animal loving mother with 25 pets trades places and families with an obsessively tidy mother who loves to-do lists and detests animals.

A 36-year-old multimillionaire heiress and mother of three from New York swaps lives with a 45-year-old wife and mother of two from rural New Jersey.

A gun-toting conservative who hasn't shared a bed with her husband in 10 years trades places with an anti-NRA animal rights activist with no job and less control over her daughter. By the end of week two, one of their husbands is in tears, while the other is tearing his hair out over his liberal new houseguest.

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A free-spirited vegetarian with a messy streak leaves L.A to sample the life of a straight-laced stay-at-home Mom in New Jersey who had a rough time dealing with her counterpart's New Agey ways. However, after a week passes, it's their kids who are having trouble, as one group gets a rude awakening about their video-game habits.

A fitness-minded type-A mom ditches California for the life of an emotional, overweight housewife in Florida. The switch shakes things up for both women, but even more so for the one who can't get used to a home devoid of fast food and friendly attitudes.

This week, in ""Bittner/Reimers,"" a strict, vegetarian, ex-Navy wife who disciplines her children swaps lives with a junk food-eating, living-large mother who allows her two headstrong teens free rein.

This week in ""Harris/Van Noy,"" an Oklahoma mother of three who agrees with her husband's edict that an obedient wife belongs in the kitchen, swaps lives with an unorthodox, working mother from Texas who believes her stay-at-home husband should rule the kitchen.

The Paiss & Davis Families trade husbands.

A tattooed, punk rock mom swaps lives with a Southern Baptist, traditional mother.

A Mississippi stay-home mother who gets gets walked all over by her by her children swaps places with a strict mother from Maryland who lays down the law at home and at her job.

An educated and organized mother trades families with a waitress who struggles to control her three wayward daughters.

A coupon-cutting, bargain-hunter, stay-at-home, mother from Ohio trades lives with a high-powered executive from Maryland who despises coupons, clutter and children ruling the house.

One-half of a lesbian couple is switched with a conservative, God-fearing homemaker from Texas.

Stay-at-home mom Michelle Pyke swaps life at the family owned funeral home for life on the road in the Smith family's converted Greyhound bus.

An assertive, domineering wife of an inter-racial couple swaps lives with a subservient, stay-at-home wife from a very different minded inter-racial couple.

A very conservative, former military mom with strong pro-war views swaps lives with a liberal, pacifist art teacher and anti-war protester.

A home-schooling, stay-at-home mom who lives in a tree house swaps places with a Type A, Harvard educated mom who works full-time for a finance company.

A supportive, laid back CEO of an all women promotional firm swaps roles with a chauvinistic, tough-talking boss from an all-male car dealership who refuses to hire women for sales positions.

A millionaire family accustomed to living a life of luxury leaves the butler behind when they go on vacation with a blue-collar family whose favorite vacation spot is a low-budget RV trailer park next to a dairy farm.