The film opens by introducing the viewer to the lives and backgrounds of the members of a world-renowned rock band through a series of fantasy sequences and vignettes. Each segment is designed to reflect the personality and inner world of the individual band members, blending reality with surreal imagery. These personalized segments transition into the central narrative, focusing on the band's concert footage recorded over three nights at Madison Square Garden in New York City during their 1973 concert tour. The juxtaposition of fantasy elements with live performance footage showcases the band's musical journey and their connection with their audience.

As the concert begins, the energy of the band and their interaction with the crowd takes center stage. The performance captures the band playing some of their most iconic songs, demonstrating their virtuosity and the electric atmosphere of their live shows. The music, combined with the unique visual storytelling of each band member's preceding vignette, creates a multi-dimensional experience. This approach not only highlights the band's musical talents and stage presence but also offers insight into their artistic visions and personal philosophies. The concert sequences are intercut with behind-the-scenes footage, giving a glimpse into the off-stage life of the band, their dynamics, and the production challenges of a major music tour, setting the stage for the pinnacle of their live performance, without revealing the culmination of their musical journey.