Rachel realized how much she loves her stepfather, Ben, last summer when he bought her that wide-brimmed blue straw hat. Her mom thought the hat was too expensive, but Ben insisted because the color matched RachelÂ's eyes. Now Rachel is looking forward to a few quiet weeks at the beach again, but suddenly she learns sheÂ'll be sharing her room with Tina, BenÂ's biological daughter, who will join them this summer. No one can anticipate the upheaval Tina will cause, especially when she arrives with her motherÂ's boyfriendÂ's son in tow.