: Charles Winchester is assigned to the kitchen under the head cook, Sgt. Pernelli . While Charles tries to introduce gourmet flair to the mess tent, Pernelli forces him to face the grueling reality of feeding hundreds of people quickly.

Initially skeptical, agrees to the swap, leading to a series of comedic and eye-opening role reversals:

This is a guide to the episode " 'Twas the Day After Christmas ," which is Season 10, Episode 9 (sometimes listed as Episode 10). Originally broadcast on December 28, 1981 , the episode was directed by Burt Metcalfe and written by Elias Davis and David Pollock . Plot Summary

: Val Bisoglio as Sgt. Pernelli and Kellye Nakahara as Nurse Kellye.

: Alan Alda (Hawkeye), Mike Farrell (B.J. Hunnicutt), Harry Morgan (Col. Potter), Loretta Swit (Margaret Houlihan), David Ogden Stiers (Charles Winchester), Jamie Farr (Klinger), and William Christopher (Father Mulcahy).

The 4077th is hosting a regiment of British troops who brought much-needed gasoline. To show their gratitude and boost morale, the camp adopts the British tradition of , where officers and enlisted personnel trade jobs for the day.

: Klinger is put in charge of the camp, while Colonel Potter takes over as company clerk. Potter quickly realizes how overwhelming the paperwork and logistics of Klinger’s job truly are.

: Alan Alda and Gene Reynolds served as creative consultants, and Dr. Walter D. Dishell provided medical advisory. Episode Themes