NEW YORK (CNNMoney) A group of Wal-Mart workers are planning to stage a walkout next week on Black Friday, arguably the biggest holiday shopping day for the world’s largest retail store.

The walkout builds on an October strike that started at a Wal-Mart in Los Angeles and spread to stores in 12 other cities. More than 100 workers joined in the October actions.

One of the workers who plans to join next week’s walkout is William Fletcher, who works at a Wal-Mart in Duarte, Calif.

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