The first of a four-part series revealing the deep musical and social impact of Latin music in the USA. The massive success of Santana's innovative Latin-blues at the Woodstock Festival leads back in time to the first Cuban immigrants arriving, with their Afro-Cuban music, into the States. Using feature film clips, rare archive and location filming, the programme examines how Afro-Cuban music has impacted - since early last century - on jazz, pop rhythms and dance styles. From Cuban rumba to New York mambo, Latin music enthralled 1950s America, challenging racial attitudes and changing the stereotypes projected in movies like West Side Story. It influenced Hollywood, TV sitcoms and 60s rock 'n' roll, as the Beatles and many American R&B bands absorbed Latin rhythms into the wider worlds of rock music, fashion and culture. Featuring Carlos Santana, Cachao, Tito Puente, Dizzy Gillespie and the greatest names in Afro-Cuban music.