Jesse W. Haywood (Don Knotts) graduates from dental school in Philadelphia in 1870 and goes west to become a frontier dentist. Penelope "Bad Penny" Cushing (Barbara Rhoades) is offered a pardon if she will track down a ring of gun smugglers. She tricks Haywood into a sham marriage as a disguise. Haywood inadvertently becomes the legendary "Doc the Haywood" after he guns down "Arnold the Kid".
Elenco: Don Knotts , Barbara Rhoades , Jackie Coogan , Ruth McDevitt , Frank McGrath , Terry Wilson , Carl Ballantine , Pat Morita , Robert Yuro , Herb Voland , Fay DeWitt , Dub Taylor , Hope Summers , Dick Wilson , Don Barry , Vaughn Taylor , Ed Peck , Edward Faulkner , Arthur Space , Greg Mullavey , Fred Aldrich , E.J. André , John Aniston , Argentina Brunetti , Claudia Bryar , Paul Bryar , Noble Chissell , William Christopher , Frank Coghlan Jr. , Warde Donovan , Mickey Finn , Myron Healey , Charles Horvath , Clyde Howdy , I. Stanford Jolley , Gil Lamb , James McHale , Tina Menard , Kathryn Minner , Dorothy Neumann , Eddie Quillan , Bill Quinn , Rodd Redwing , Benny Rubin , Naomi Stevens , Boyd Stockman , Leonard Stone , Lorna Thayer , Peggy Mondo , Jim Boles .