In this episode, you'll learn how to use the common English expression “the coast is clear,” which means it’s safe to proceed because no one is watching or in the way. After breaking down the literal and figurative meanings, as well as the origin, you'll hear three vivid examples—one featuring a mama bird, a cheating girlfriend, and shoplifting teens.

The cultural spotlight of this episode is on Alcatraz, the infamous island prison off the coast of San Francisco. Once home to criminals like Al Capone, Alcatraz was considered escape-proof—until 1962, when Frank Morris and the Anglin brothers vanished in a daring and ingenious escape involving handmade dummies, a raft made of raincoats, and months of careful planning. Despite debris being found and decades of investigation, the trio was never seen again, making it the longest-running manhunt in U.S. history. In this episode, you'll learn about the prison, and how these three men got out!

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