Online stream anime episodes, Watch Yu-Gi-Oh 5D’s Episode 79 English Subbed online and free episodes. Anime Episode guide, Chapter Yu-Gi-Oh 5D’s Episode 79 English Subbed To a World Yet Unseen Recap episode. As Yusei tests out his engine, Jack and Crow look back on his previous battles to try and understand him. When they meet up with Yusei, he suspects that Yliaster is the one behind Ghost and is planning something big with the WRGP. He also tells Jack and Crow about Cosmic Synchro. They become determined to learn this new move, which would require a new engine. Meanwhile, a mysterious person washes up on the beach.