It features series regulars Sid James, Kenneth Williams, Charles Hawtrey, Joan Sims, Terry Scott, Hattie Jacques, Barbara Windsor, Bernard Bresslaw, Dilys Laye and Peter Butterworth.

After paying the membership fees to the owner, money-grabbing farmer Josh Fiddler, Sid realises it is not the camp seen in the film, but merely a standard family campsite.

Meanwhile, a group of young ladies on holiday from the Chayste Place finishing school stay overnight at Ballsworth Youth Hostel.

The following morning, Dr Soaper leads an outdoor aerobics session, during which Babs' bikini top flies off; he catches it.

Chaos ensues when a group of hippies shows up and take over the neighbouring field for a noisy all-night rave led by the band "The Flowerbuds".

Their joy is short-lived when Joan's mother turns up, but Anthea lets loose a goat that chases Mrs Fussey away.