Inheriting a family resort in Hawaii, the Wyatts find it in such a run-down condition that they decide to sell it after trying to fix it up. Amidst confusing goings-on among the triplet teenage girls and the boys they meet, Jeffrey meets an old high school rival who promises to keep the resort as-is if Jeffrey will sell it to him. He has other plans in mind, however, and they are not limited merely to Jeffrey's resort

Thelma Harper and her spinster sister Fran open their home to Thelma's recently divorced son Vinton and his teenage son and daughter. It's quite an adjustment for everyone, especially the cranky, argumentative Thelma.