From the back cover:

ER nurse Darcy Cavanaugh is sailing the high seas again—adrift as a bridesmaid on a wedding cruise that includes raucous firefighters with a taste for practical jokes and raunchy ties.  Cruising up the West Coast, Darcy tries not to obsess about one curious ring-sized box hidden in her boyfriend’s pocket. But a poet-stalker infatuated with her feet, a stressed-out wedding planner, and her hunky ex-boyfriend are keeping Darcy on alert for more than the free mimosas!

When the prankster firefighters start dropping like flies, “I do” becomes “I didn’t” as the entire wedding party is held on the ship and questioned one by one. Between bouts of killer staples, interrogations by the FBI, and one mortifying polka-dot bridesmaid dress, Darcy wonders if she’ll ever be ready for the tumultuous tides of marriage.