10 Most Shocking TV Episode Endings

Lost was no stranger to ending its episodes on a memorable note, but finales aside, none of them quite reach the magic of its fourth-ever episode.

Walkabout focuses on the mysterious character of John Locke, a man who grabbed the audience's attention from his first moment on screen. He stayed relatively in the background for most of the first three episodes, but by the end of the fourth, he'd cemented his place as one of the show's core characters.

And who exactly is John Locke? Walkabout shows him in two very different points in his life: one on the island, where he's tough and bold and self-assured, and the other before the plane crash, where he comes off as a bit of a pushover. What changed him? We don't find out until the final scene, and it turns out, the answer was hidden in plain sight.

It's a truly magical moment in a show that already felt like it was running at full speed. Walkabout's final moments are a perfect showcase for how compelling Lost could be just by focusing on its characters.