Mitchee finds out her ex-boyfriend, Zack, is back in town, and things heat up in a big way. Meanwhile, Alan discovers that Lee used to date Terry, a billionaire businessman whom Alan has always admired.
Farrah decides to hire Charlie, a former underwear model, to be the company's new Director of Marketing. However, everyone thinks he won't be able to do his job because he's just a pretty face.
Mitchee and Farrah end up having their first fight in their new condo and come to believe that moving in together may not have been the best idea. Meanwhile, Lee and Alan decide to spice up their romance and visit the local video store.
Mitchee wants to buy a condo in an exclusive location, but the price is out of her range. She reluctantly asks Farrah to move in with her, who declines the offer. Meanwhile, Alan and Lee agree to a spending limit for their anniversary gift, but when Lee admits she spent more, Alan is frantic to match her amount.
Mitchee and Farrah find out a prank they pulled at summer camp 20 years ago still haunts their victim, and they decide to try to make it up to her. Meanwhile, Lee starts to go dancing without Alan, which suits him just fine---at first.
Lee helps Mitchee prepare for a company party with a new dress and hair style. Mitchee is at first upset, but comes to enjoy her new look. Meanwhile, Alan disapproves of Farrah's latest boyfriend, and his interference results in an even more unpopular choice for a date.
To prove to Farrah that she can have fun, Mitchee throws herself a birthday party. Elsewhere, Alan and Lee decide to make a list of all the reasons they don't like one another and Alan is ashamed that his list is longer than hers.
Mitchee follows Lee's advice and sets up Jordan with Farrah so he'll realize that they don't belong together. However, her plan sadly backfires.
Mitchee and Farrah come to an agreement on not to argue in front of their employees while running their lingerie business. But the sister's truce does not last long as they bicker over the name of an underwear design. Lastly, retirement for Alan is a lot harder than he had originally expected.
Twins is an American situation comedy series that first aired on The WB in the United States and on CTV in Canada in September 2005. The series is produced by KoMut Entertainment in association with Warner Bros. Television. The show was cancelled on May 18, 2006 due to the merger of the WB and UPN that created the new network The CW.