Hawkeye and Trapper John assume unlikely roles as and "fathers of the bride and " - and US-Canadian relations may never be the same! To Montreal they escort a motley party, determined to celebrate the most memorable wedding that ever joined a love-sick couple. With the help of the Reverend Mother Emeritus Hot Lips, Horsey de la Chevaus, the Royal Canadian Mounties, and a drunken cast of thousands, the nuptial proceedings get under way ...and there's a rollicking fight to catch the bouquet!