A BIKER BABE AND HER BURLY HUSBAND SWAP LIVES WITH A CONSERVATIVE IRISH STEP DANCING FAMILY, ON ABC'S "WIFE SWAP"

"Mallick/Stewart" � A biker family obsessed with leather, wheels and all things motorcycles swap lives with a family passionate about their wholesome Irish heritage and keeping to their strict, structured schedule, on "Wife Swap," FRIDAY, APRIL 3 (8:00-9:00 p.m., ET) on the ABC Television Network. Each week two very contradictory families from across the country participate in a two-week-long challenge: The wives exchange husbands, children and lives (but not bedrooms) to discover daily life in another woman's shoes. This astonishing experiment repeatedly changes lives and redefines families.

Out west in Washington, the bad-to-the-bone Mallick family's motto is "everyone has a little white trash in them!" Biker mom Jennifer (30) and her bearded, biker husband, Jason (37), are proud owners of 13 motorcycles and parents to two hell-raising sons, Logan (7) and Damon (4). Jennifer often dons thigh-high- boots, short skirts and leather, transforming her into "Hot Biker Mama Jenn," which Jason loves to flaunt. The Mallicks frequently have their rowdy friends over for all night biker bashes, complete with a party pole for entertainment. Jennifer and Jason don't believe in censoring their gear-head sons and hope the exposure to the wild biker lifestyle will help the boys become less judgmental. Jason uses his love of biking to bond with his boys, spending time with them in his garage and teaching them valuable skills like building carburetors for their dirt bikes.

The super-structured Stewart family from Pennsylvania believe "if you are lucky enough to be Irish, you are lucky enough!" Mom Pamela (47) and Dad Tim (47) are so proud of their Irish heritage, they've immersed their children, Kathleen (15) and Thomas (14), in up to four hours of Irish activities every day. Pamela participates in Irish Step Dancing with the kids, and Tim completes their family Irish band. Both Pamela and Tim believe their children's exhausting schedule, packed with wholesome Irish activities, keeps their kids out of trouble. With so much time spent rushing from folk dancing practice to Irish music classes, Kathleen and Thomas rarely get to see their father. Tim can often be found playing his accordion alone, with headphones on so he doesn't pollute their perfect home with noise.

In the first week, Jennifer Mallick leaves behind her leather and chains for the prim and proper Stewart home. Upon arrival, she's shocked by the amount of time devoted to Irish music, dancing and art. After spending hour after hour transporting the kids to all of their activities, she is brought to tears by the kids' punishing schedule and the lack of their father's involvement in their lives. She confronts independent Tim Stewart, who admits he is a pushover when it comes to Pamela's demanding schedule. Meanwhile in Washington, conservative Pamela Stewart has difficulty fitting into the culture of bikes, beer and babes. She is intimidated by Jason's long beard, black clothes and affinity for leather. Pamela worries that Jason isn't setting the best example for Logan and Damon, and that the Mallicks' chaotic lifestyle will lead the boys down a dark path.

In the second week of the swap when the wives change the rules and turn the tables, Jennifer Mallick puts an end to the Stewart kids' stressful schedule. Instead she rules that the normally absent Tim has to following his kids' non-stop schedule. After an exhausting day, Tim realizes the Irish activities are "brutal" on his kids. Jennifer then gives the whole family biker makeovers in hopes they can learn to relax and let loose together, as a family. Meanwhile in Washington, Pamela Stewart strives to turn the "biker lovers into Blarney lovers." In order to help the Mallicks get in touch with their Irish roots and introduce the kids to a dose of structure, Pamela signs the family up for Irish folk music and Irish Step Dancing lessons. Though Jason fears the fast-paced schedule will overwhelm his kids, he strives to set a good example for his boys by following through. After two weeks in another home, can Jennifer Mallick help the Stewarts realize it's more important to be in touch with your family, rather than just your heritage? And can Pamela Stewart help the Mallicks bring some structure into their wild biker life for the sake of their boys?

"Wife Swap" is an RDF USA production. It was created by Stephen Lambert and is executive-produced by Mike Gamson and Michael Davies of Embassy Row ("Who Wants to be a Millionaire"). Stephen Pettinger, Neil Regan, Julie Cooper and Will Nothacker are co-executive producers. Stef Wagstaffe is consulting producer. "Wife Swap" is broadcast with Spanish subtitles via secondary closed captioning. A TV parental guideline will be posted closer to airdate.