Rupert Hine was a producer and keyboard player in the early and mid-1970s before he formed this jazz rock fusion band. Working with some of his regular studio session musicians like bassist/vocalist John G. Perry, and Simon Jeffes with whom he had collaborated on string arrangements since Hine's first solo album in 1971, Pick Up A Bone. Jeffes formed Penguin Cafe Orchestra, but continued to collaborate on the Quantum Jump albums.

Some time after the 'Barracuda' line-up had disbanded, Denny McCaffrey (percussion) was rehearsing with a new line up of Quantum Jump, including: Big Jim Sullivan (guitarist with Tom Jones), Geoffrey Richardson (Caravan), Trevor Morais (The Peddlars) and Alan Spenner (Kokomo), when Kenny Everett’s TV show took-off, on which 'The Lone Ranger' was the theme. It was hastily re-released and entered the chart on 2nd June 1979, rising to no.5 and staying on the chart for a total of 10 weeks. The original Quantum Jump reformed, and the newly recruited musicians were no longer required.