To boost morale on the day after Christmas, Col. Potter (Harry Morgan) adopts the "Boxing Day" strategy popularized in the British military. For 24 hours, the officers of the 4077th will trade places (and ranks) with the enlistees, and vice versa. Naturally, the officers have less fun than their subordinates, but an eleventh-hour emergency enables everyone to appreciate the wisdom of Potter's temporary switcharound. ~ Hal Erickson, Rovi