Highlander S05E15 - The Stone of Scone

According to official statements by the British government, the theft of the Stone of Scone, the legendary royal throne of Scotland, from Westminster Abbey in 1950 was simply a rowdy schoolboy prank. But was it? Or was it actually the bungled work of three rather hapless Immortals, attempting to fulfill a promise made centuries before?

A flashback episode: Fitzcairn and MacLeod enlist Amanda's help in stealing the Stone of Scone.  She agreed thinking it a gem, rather than the boulder beneath the monarch's throne.