In 1900, three lighthouse keepers disappeared without a trace. It's up to Carly Q at The Bureau of Universal Time Travel and Historical Exploration Department (also known as B.U.T.T.H.E.D) to travel back in time to the remote island of Eilean Mor to find out where the lighthouse keepers went. Visit whowhenwow.com for a printable worksheet based on this episode. Originally aired 2/22/23.

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