The Episode 5 – “DeFrag” – is now available exclusively on own3D.tv in three quality formats, inkl. HD 720p.

There are also subtitles available in English, German and Russian (check the flags below the video player). Notice: skipping video may cause some lags in showing subtitles.
If you missed the previous episodes you can watch them in the official Arenas channel.

Links: Episode 5 - "DeFrag" , Tritin-Multimedia