Paramutual Pictures wants to know where all the money is going so they hire Morty to be their spy. Morty works for Mr. Sneak and gets a job in the mail room so that he can have access to the lot. But all that Morty ever finds is that he can cause havoc no matter what he does.

Doris Day and Howard Keel fuss, feud and fall in love as Calamity Jane and Wild Bill Hickok. At first curvaceous Calamity is too durned busy fighting Indians and cracking a bullwhip to pay mind to such girlie what-alls as dresses and perfume. She soon changes her mind when Katie Brown arrives in town.