A sailor is caught in a severe storm and is reached just in time by two sea rescue cruisers. With great effort, they manage to bring the situation under control. As the vessel is being escorted in convoy towards the harbor, a medical emergency suddenly occurs on board, requiring a daring rescue operation: a sea rescuer has to board the sailboat in heavy seas. Shortly afterwards, a red warning light is noticed on the sailboat. The situation threatens to escalate again.