CLAND'S SUCH A JERK is the lost episode of Hatty. It is the 14th episode of the first season. It never aired on TV.
The episode starts with Hatty and Allo playing in the snow. Allo gets angry at Hatty and leaves. Hatty wanders around the snowy woods and finds Allo, frozen. Hatty picks up Allo at this point, as the camera zooms out. Hatty's screaming could be heard as he looks at the now dead Allo.
"I'm so sorry Allo, don't leave me!"
Hatty keeps crying until the camera zooms in on Allo's face.
"you're such a jerk..."
That's all Allo says before he "officially dies".