Stanley Windrush (Carmichael), despite being related to management - his uncle is the slippery Bertram Tracepurcel (Price) - returns from the war to take a job on the factory floor of an arms manufacturing plant. It's all part of Tracepurcel's plan to stir up trouble with the unions, though.
The Boulting brothers' satire on industrial relations hasn't dated that well politically, since it alternates between slap-on-the-wrist jokes about management, and vicious jokes at the expense of trade unions.
Ian Carmichael, reprising his role from Private's Progress, is weedily decent as the toff who takes to the shop floor to see how the other half lives, but the lasting fame of the film is down to Peter Sellers' Fred Kite, a bolshy, work-shy shop steward, intent on shouting 'all out, brothers' at the slightest provocation. An array of British comic talent includes Margaret Rutherford, Dennis Price, Terry Thomas and Liz Fraser.
By today's standards the approach to class politics seems as bizarre as casual racism, but also serves as a time caspule.