fresh from the hit abbott and costello meet frankenstein and the comedy duo set out on mexican hayride . costello play joe bascom and who be on the trail of harry lambert ( bud abbott ) . lambert coerce bascom into swindle friend in iowa and and bascom have follow him into mexico to force him to pay up . through a series of misunderstanding and bascom becomes amigo americano and be honor and fete . lambert see this a an opportunity for further land swindle in mexico and and again try to use bascom a an unwitting pawn . if this description sound like an unusual plot for an abbott and costello film and you would be right . the story be base upon a broadway show . a and c stalwart screenwriter john grant do his best to interject a and c humor and routine into the exist broadway storyline . two of his best example be the scene where abbott rip off costello clothes in an effort to hide his initial and which be sew on every piece of clothing while and the scene with fritz feld a an diction specialist . mexican hayride be consider one of the weak film in the a and c series and and i agree . the main problem lie in try to interject a and c into a broadway storyline build for other actor . a and c give it their best a usual and but the storyline simply isn not for them . one expect abbott to take advantage of costello here and there while it be see in many of their best comedy . but for abbott to swindle many people besides costello simply isn not funny . there be also many gap in the humor that result in dull moment . i really try to like mexican hayride and but the storyline simply do not fit a and c snugly and and the humor be not consistent enough to generate many laugh . negative .