Marc Girard who is the general director of the Mérieux Foundation, talks about Cent Gardes and the collaboration between France and the USA, mainly represented by the Pasteur Institute and NIH, and about why HIV is such a complicated virus to find a vaccine for.

The primary focus of this documentary is on the history of how the AIDS epidemic started in San Francisco, Los Angeles and New York in 1981. Many different stories are told about people affected or surrounded by HIV and AIDS in the early years of the epidemic.