A movie of a dog that obsesses a horse's horseshoe very much

Attach to protect the hoof hoofHorseshoe (Tatsutetsu)A dog's movie that has tremendous affinity towards.

I try to go get it even if throwing it into the pool even though I like it better.

Movie playback is from the following.
"Extreme Fetch" - Video

While playing with a horseshoe,

Taken up,

It will be thrown into the vinyl pool.

I think what to do ... ...

I jumped in.

It does not come up quite easily.

Breathing.

Re-search started.

It seems I have found a shoe.

It seems that the horseshoe is missing before, but where is it?