X Trillion follows an all-women crew, led by ocean advocate Emily Penn, on a transformative voyage across the North Pacific's plastic-choked waters. Amid isolation and rough seas, they uncover a staggering microplastic crisis—half a million pieces per square kilometre—while conducting vital research. Among the crew is Université Laval graduate Karine Therrien, an agro-environmental engineer, whose passion for water protection and sustainable agriculture helps fuel the mission. This powerful journey blends science, resilience, and hope in a call to action against plastic pollution.