Jack and Sarah hit the sun sea and sangria as they finally enjoy some vacation time, but it's not long before Jack lands himself in deep water, and not just with his sister. When he meets a beautiful mysterious woman at a local bar the two seem to be becoming close, but Sarah has her doubts and begins her own mission to try and expose this mysterious woman, but as she delves deeper into Jacks love life something seems to be killing off holiday makers, and it's not the sharks. Can Sarah finally figure out the true identity of the mysterious woman, or will she lose Jack to a new love in his life?