The Walking Dead Season 4 - Episode 1 -

A wide crane shot of the prison at twilight. It looks safe. Warm. Lights flicker in the windows. But outside the fence, a single walker—the new kind—stumbles out of the woods. Its eyes glow faintly in the dark. It opens its mouth. Black fluid drips onto the dead leaves.

(unsheathing her katana) “Or a tomb.” The Walking Dead Season 4 - Episode 1

Then it vomits a torrent of black sludge onto the floor. A wide crane shot of the prison at twilight