Why is the captain worried about his safety and the safety of the two women?

The captain is likely worried about his safety and that of the two women due to a perceived threat in their environment, whether from external dangers like hostile individuals or natural hazards. His concern may be heightened by the potential vulnerability of the women, which adds to the urgency of ensuring their protection. Additionally, any recent incidents or warnings could have contributed to a heightened sense of danger, prompting him to take extra precautions.