Toronto 1899. Mackenzie King sonha em se tornar primeiro-ministro do Canadá. Na sua busca pelo poder, ele enfrenta sua mãe e uma governadora-geral belicista. Quando a corrida à liderança provoca uma batalha entre o bem e o mal, King descobre que a decepção é a única forma de sobreviver ao século XX.
Laurie é uma mulher carismática, que faz de tudo para se tornar famosa. Clara é uma estrela das redes sociais que vive só pelos likes de seus seguidores. Já Elizabeth enfrenta com força todas as dificuldades financeiras e amorosas da vida adulta. Juntas, as três amigas vivem um verão cheio de possibilidades, experimentando de forma caótica os paradoxos da vida de toda jovem moderna.
Celebrated European actor Sophie Bernard is in Montreal shooting a movie, and she's taking the opportunity to visit her gay son Thomas in the hope of bridging the rift that's grown between them. But Thomas has his own agenda for their time together; he intends to finally get some answers as to the identity of his father. Meanwhile, at Ville-Marie Hospital, paramedic Pierre struggles with PTSD, and though he has support in Marie, a nurse who keeps the overflowing emergency room running, it's uncertain whether he'll remain able to cope with the high intensity of his work. Each of these four characters is dealing with emotional damage — and on one dark Montreal night, their lives will all intersect in a fateful occurrence at Ville-Marie.
In the summer of 1969, Bernard, a Gaspesian fisherman's son, arrive in Perce to fin work. He meets Paul, Jacques and Francis, Quebec Independence activists who have come to open the 'Fisherman's House'. They aim to organize public conferences and offer lodgings to young travelers. A motley crowd of Quebecers from all over the province soon flocks to Perce: artists, hippies, rockers, hitchhikers and the like shake local authorities. Bernard is won over by the trio's ideas and gets increasingly involved in their project. The following year, the will join the Front de liberation du Quebec (FLQ) and play a pivotal role in the Summer Crisis 1969.