The “I Love Lucy” episode in which Lucy and Ethel get stuck in a freezer is titled “The Freezer.” It is the 29th episode of the series and originally aired during the 1952–53 season.
In the story, Lucy and Ethel have a meat freezer installed in the basement and buy two sides of beef without realizing that the total weighs about 700 pounds. They desperately try to dispose of the excess meat before Ricky and Fred discover what they have done.
Their scheme leads Lucy into the freezer itself. She becomes trapped and emerges nearly frozen, prompting Fred to turn on the furnace in an attempt to warm her. The furnace accidentally cooks the meat that Lucy and Ethel were trying to hide, completing the episode’s escalating farce.
The title is sometimes misremembered as “The Refrigerator” or “The Icebox,” but those descriptions refer to the prop and premise rather than the episode’s official title. The episode is also notable for its physical-comedy centerpiece involving the oversized freezer.