The Pembertons pack up their home in not-so-sunny Yorkshire and head for Florida and the promise of beautiful weather at the Kissimmee Sunshine Park. What dad Mal discovers upon their arrival is ... not quite as he'd expected.

Having packed it all in for a life in the sun, things aren't quite going to plan for Mal, Jen and the kids. Mal's battling to keep the peace with burly park resident Troy and Tina and Freddie struggle to get to grips with life in an American high school. Meanwhile, Jen's in for an unexpected makeover when Rhonda invites her to a ladies' lunch.

The park's septic tank explodes and Mal and Jen are forced to turn to the only sewage expert around: Mayor Herman Bloch, the eccentric father of Tina's new boyfriend. Meanwhile, Freddie struggles to find his place at school, and Conan looks to take his and Tina's relationship to a whole new level... and it's not one Tina was expecting.

Jen's horrified when her over-critical mum shows up three weeks early. Mal and Freddie hatch a money-making scheme that means hosting a rather unusual wedding.

A lawyer's letter delivers Mal and Jen another blow. They need to track down the park's mystery co-owner. And to do so, they'll need the residents' help.