Professor Crump (Kenneth Williams) has organised an archaeological dig looking for Roman ruins with Professor Vooshka (Elke Sommers). Their dig happens to be next to a rather low-rent camp site owned by Major Leep (Kenneth Connor) with odd-job man Henry (Peter Butterworth) always after a few quid. Amongst the camp site visitors are Ernie (Jack Douglas) and Fred (Windsor Davies) who are on a "fishing" trip, though as their wives are not with them, and as this is a Carry On film, we know what they are looking to "catch"! Arthur (Bernard Bresslaw) and his wife Linda (Patsy Rowlands) are also there, unfortunately for Arthur so is his mother-in-law (Joan Sims) and her potty-mouthed mynah bird!
The film lacks much in the way of plot, the dig and the camp site gradually falls into chaos and ruin, especially after a lot of rain. The comedy situations are very funny though. Many of the jokes are so obvious an Eagle could see them coming, you'll still laugh though.
