Toronto, Canadá, 1899. William Lyon Mackenzie King (1874-1950) cree fervientemente que está destinado a convertirse en Primer Ministro, pero para conseguirlo deberá luchar primero contra sus obsesiones personales y vencer los muchos obstáculos que encontrará en su tortuoso camino hacia el poder.
In a primary school classroom, teacher Liliane anxiously awaits an important phone call. Her student Mathieu is even more of a disturbance than usual, but after Liliane receives a distressing call from the hospital, Mathieu rallies the students to turn a difficult day for Liliane into a magical one.