Former playboy Ryan Madison has wanted no one else since he met elfenchaun, Dori. He has waited many long months for her to be certain she could love a mere human and his quirky family. Now, as they are planning their Christmas wedding, a box of broken childhood memories arrives, as well as a space ship carrying alien canines that crash lands into a neighbor’s barn.
Rescued from 1800s Olde Ireland by Uncle Horace in his time machine, elfenchaun Dori is still in awe of modern times and her love for Ryan. When his past shows up in the form of a first-grade crush dressed in a chicken suit, Dori can't help but like the woman in spite of fearing Ryan may want to call off the wedding.
However, as Aunt Maddie's family and their friends come up with a plan to rescue the alien Canine King, who has been dognapped by the evil commander of the Geeks in Green for tortuous experiments, the past fades into hilarious pawsibilities. Who is the mysterious man with a flying car and a laser weapon? Can Uncle Horace fix the broken pieces of a childhood toy? How do the Blue-Haired Ladies with their Nertz tournament fit into the scheme of things? And who are the special guests at Ryan and Dori's wedding?