Chapter 646, "Limestone Valley (Part 2)", is the clearest early answer because it turns Altera's situation into a concrete plot event.
Chapter 502, "Last Preparations (Part 2)", is the clearest early answer because it turns Altera's situation into a concrete plot event.
Chapter 220, "Prying Corners (Part 1)", is the clearest early answer because it turns Altera's situation into a concrete plot event.
Chapter 194, "Newcomers", is the clearest early answer because it turns Altera's situation into a concrete plot event. The setup is [12 days of Protection Period] Altera Village., but the pressure keeps building through After much ado, the mighty team of 131 people, led by Drake, finally....
Chapter 625, "Reunions", is the clearest early answer because it turns Altera's situation into a concrete plot event.
Chapter 438, "Mauin Village", is the clearest early answer because it turns Altera's situation into a concrete plot event.
Chapter 357, "Settlement", is the clearest early answer because it turns Altera Village's situation into a concrete plot event. The setup is Their female-allergic Captain actually kissed one in public!, but the pressure keeps building through It was just a peck, but still!!!!.
Chapter 76, "Rescue", is the clearest early answer because it turns Rescue Altera's situation into a concrete plot event.
Chapter 604, "Part 3", is the clearest early answer because it turns Gordons's situation into a concrete plot event.
Chapter 70, "Start of Construction!", is the clearest early answer because it turns Altera Village's situation into a concrete plot event.