The only man pragmatic Lilly Hart needs in her life is a six year old. Widowed two years ago, Lilly leaves the shelter of her intrusive in-laws' home to stand on her own and provide for her young son by working for the summer as a cook at Lake Manawa. However, her in-laws find that life utterly unsuitable for their grandson, and when a row ensues, a handsome stranger--who designs roller coasters, of all things--intercedes on her behalf. Still, Lilly is not about to get involved with any man, especially this cocky (though charismatic) gentleman. Little does she know she is about to begin the ride of her life.