Tony's investigation gathers momentum as he finds the first bit of concrete evidence.

In the present day, Tony and Julien make a breakthrough.

Progress into the case is initially slow but a shocking new lead emerges.

Tragedy strikes when five-year-old Oliver goes missing on a family holiday to France.

The stress of the reopening of the case takes a toll on Emily and Mark's relationship.

In 2006, Tony and Emily's pleas to reinvestigate a suspect again fall on deaf ears.

Tony and Emily return to Chalons du Bois and their relationship thaws.

The truth about Oliver's disappearance finally comes to light.

Julien's health is failing, but he is still determined to track down the missing girl.

Gemma is forced to face up to the destruction wrought on her family.

A woman, previously abducted, may hold the key to the location of another missing girl.

After Alice returns to her home, the Websters struggle to deal with what she's suffered.

Julien visits the father of Sophie Giroux, but Remy isn't all that pleased to see him.

Julien and Jorn's investigation leads them further into the murky underbelly of Eckhausen.

Julien finally learns the truth behind Alice and Sophie's abduction.

Sam and Gemma are pulling together and join Julien in a desperate race against time.