In the sixth-season premiere, a wife with three children and 14 plastic dolls called "reborn babies" swaps with a strict family that employ their three boys at the family coffee shop and hot-dog stand.

A family of pop-star wannabes swaps with a family of social activists.

A family of Goths who dance ballet and commune with the dead swap with an ultracompetitive hockey-playing family.

An animal-obsessed family with 29 pets and a disregard for appearances swap moms with a fashion-obsessed family that don't tolerate animals.

A successful entrepreneurial family who believe in positive thinking swap with an unemployed family struggling to make ends meet in a trailer park.

A male-chauvinist family of football fanatics swap with a hippie family that place high values on creativity and individuality.

A strict, clean-cut clan who put on a wholesome traveling variety show and live in an RV swap with a family of lowrider and car-show fans who don't believe in rules for their five daughters.

A family who live like pioneers, including traditional roles for man and woman, swap with a family headed by a breadwinner mother and obsessed by modern technology

A survivalist family preparing for the end of the world in 2012 swap with a family that dote on their kids, particularly their 12-year-old golf-prodigy daughter.

A family that prize etiquette and elegance for their daughters swap with a family with down-home mud-racing tomboys.

A family that operates an organic goat farm swaps with an upscale family with a workaholic, shopaholic mom and a stay-at-home dad.

A driven, conservative family of gymnasts swap with a freewheeling family that enjoy kickball and karaoke.

In the sixth-season finale, a New York City couple who teach relationship workshops and dress as superheroes swap with a strict couple who moved to the country to shield their children from the influence of cities and believe in chores and discipline.