In the heart of the Landes, during the great storm of 1999, eleven-year-old Charlotte Meyer disappears.

Sarah tries to tie Charlotte Meyer's disappearance to the Fanny Vidal case, convinced Fouquet is responsible for the disappearance of the new victim as well. But as Sarah interrogates the suspect, he tricks her into making an error, jeopardizing her role in the investigation.

Sarah fights to stay on the case, managing to link the two girls' disappearances and piling up evidence against Fouquet.

Fouquet has all the trappings of a dangerous child predator; Sarah is sure she's found the man behind Charlotte Meyer's and Fanny Vidal's disappearances.

Tony is arrested but denies having anything to do with the girls' disappearances.

The DNA found on Charlotte Meyer's boots leads to a surprising female suspect.