This is a TV series about French intelligence agents. Inside the DGS, there is a department called the Legends Office (BDL), which remotely controls the most important personnel of the French intelligence service: underground agents. Infiltrating hostile countries, their mission is to find those who may be recruited as sources of intelligence. Working in the shadow of "legends", that is, living for many years with their fictitious identities and masks. After returning from a six-year secret mission in Damascus (the capital of Syria), our protagonist, codenamed Malotru, who we are more familiar with, has been promoted within the BDL and gradually returned to his real life. But he does not seem to have jumped out of the legend and identity when he lived in Syria.