In snowbound Tokamachi, Japan, teenaged Akio Sakurai took refuge in his room, escaping to another world with a pair of headphones and a pile of Led Zeppelin records. Moving to Tokyo, Akio worked as a kimono salesman by day, but by night became "Mr. Jimmy," adopting the guitar chops and persona of Jimmy Page. For 35 years, Akio recreated vintage Zeppelin concerts note-for-note in small Tokyo clubs, until the "real" Jimmy Page stopped by one night, and Akio's life changed forever. Inspired by Mr. Page's ovation, Akio quits his "salary man" job, leaving behind his family to move to Los Angeles and join "Led Zepagain." Soon cultures clash, and Akio's idyllic vision of America meets with reality.