On the eve of the tanker’s departure, Basov has a heated argument with his wife, Musya, leaving their relationship strained.

Aboard Derbent, discipline is lacking, the crew regularly falls behind schedule, and rival sailors from the tanker Agamali mockingly label them "slowpokes" and "floating coffins."

Determined to prove them wrong, Basov motivates his crew to improve engine performance and tighten discipline, initiating an informal competition with Agamali.

Kasatsky orders the towline cut to avoid further risk, but Basov, political officer Bredis, and the rest of the crew convince their timid captain, Kutasov, to send rescue boats.

Musya reconciles with Basov, admitting her earlier mistakes, and Bredis delivers a heartfelt speech honoring the resilience and dedication of Caspian workers.