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One day, Horton the elephant hears a cry from help coming from a speck of dust. Even though he can't see anyone on the speck, he decides to help it. As it turns out, the speck of dust is home to the Whos, who live in their city of Whoville. Horton agrees to help protect the Whos and their home.
Horton Hears a Who! - watch online: stream, buy or rent
Currently you are able to watch "Horton Hears a Who!" streaming on Disney Plus. It is also possible to buy "Horton Hears a Who!" on Apple iTunes, Google Play Movies, Microsoft Store as download or rent it on Apple iTunes, Microsoft Store, Google Play Movies online.