Based on the LIfe With Derek series that aired on Family Channel and Disney Channel.

Derek (Michael Seater) and Casey (Ashley Leggat) are back and continue their hilarious sibling rivalry during a family vacation to visit their grandmother at her beautiful lakefront lodge. Things heat up with Casey when she meets, Jesse (Archambault), a handsome young dancer who is a waiter at the lodge. Meanwhile as Derek is “chilling” on his vacation, he falls for Roxy, the rich girl who lives across the lake. But when Roxys father, a greedy land developer, threatens to destroy the natural beauty around them, the McDonald-Venturi kids band together to save the lake and the lodge.