Mermaid Project - Episode 3

Roger, Romane’s brother, has been transferred to an Algapower lab in Brazil.
Shortly afterwards, his sister, still working for Intelligence, arrives in
Rio. Her new mission: to get in touch with her brother and convince him to
inform the authorities on the company and its mysterious Mermaid Project. The
stakes have changed for the Pennac siblings, though: among the documents
retrieved during the New York mission, their names appear on a list of
potential test subjects...