Three months after the tragedy it is the celebration of the wedding of Marie and Marco in Mégantic; the Lamarres wonder if they should accept the contract to rebuild downtown.

The appearance of Tim Richards, his colleagues Lacolle and Duclos takes place in Lac-Mégantic; following a tough arrest for criminal negligence, Richards goes through the interrogation that will lead him to the appearance.

Faced with this devastation, Father Rémi questioned his faith, as did Marco and other Méganticois.

Annick is no longer able to live her life normally following the events; on the evening of the tragedy, she joins an old flame and arrives late at the Musi-Café, thus avoiding death.

Bryan, a volunteer firefighter, experiences the aftermath of the tragedy and sinks into a depression; he reconnected with Myriam, his childhood sweetheart.

Vincent tries to take a step back and calm his family's distress following the tragedy, even if he sometimes considers committing the irreparable.

Two months after the event, the traumas are more and more present; the police must intervene with Corine.

An explosion in the center of Lac-Mégantic will upset the destiny of its inhabitants; Gabrielle gets a music recording contract.