Environmentalists cheered, and traditionalists moaned, when the Isle of Man hosted the first ever zero-emissions motorcycle "Tourist Trophy eXtreme Grand Prix" in 2009. The electric bikes have returned for the Time Trial Extreme Grand Prix every year since, and this documentary takes you inside the phenomenon, from the engineering involved in achieving high-performance propulsion to the conversion of the skeptics. Ewan McGregor narrates. 90 min. Standard; Soundtracks: English, Italian; Subtitles: English.