Part 7/10:
As the crew navigates the deadly environment, they face constant threats from the sun and the unfolding madness around them. Mistrust festers, especially with the soldiers on deck, culminating in various power struggles. The tension within the submarine increases, underscored by the harrowing reminder of the destruction happening on the surface.
Amidst the turmoil, Armand rises to the occasion, fixing submarine malfunctions and earning respect from the crew, including a begrudging acceptance from the commander. However, the small victories are punctuated by destructive events, including a tragic explosion that costs lives and challenges the survivors' morale.