Unionized Starbucks employees in Seattle plan to hit the picket line Friday in a labor action expected to continue through Christmas Eve.

Seattle’s union Starbucks baristas are set to kick off a five-day series of escalating strikes starting Friday.

Starbucks' union says workers are walking off the job at some 300 — out of over 10,000 — stores across the U.S. as contract negotiations falter. The company urges it to return to the bargaining table.