Last Flight of the Protostar Part 2 Chakotay reveals that the ship needs deuterium from a maelstrom on the other side of the vapor ocean before they can restore power so the crew transforms the spaceship into a makeshift sailing vessel. While crossing the ocean, Dal clashes with Chakotay, before admitting that he's questioning his purpose after seeing his future in Wesley's machine. Chakotay offers Dal some advice based on his own experiences and Dal later saves Chakotay's life after he falls into the ocean...