The crew of Ngarra’s deep sea mining Skimmer are at Xed Ocean Academy under the watchful eye of officials and soon to return to sea. Previously, they had been pursued at sea for a technology one of the crew developed that enabled Xtract mining drones to learn autonomous group behaviour. Chang, a crew member, is convinced his sister Ying Yue is in danger. She works onboard the Chinese-owned GlobeCorpMining deep-sea mineral Harvester and is developing a technology that has the potential to undermine the Skimmer crew program. Chang becomes a pawn that is played by all sides, culminating in a face off at the Harvester. As brother and sister struggle with family history, it becomes apparent that there is more to the Skimmers than the crew is led to believe.
Andrew has a PhD in environmental and marine science, Grad. Cert. in strategic studies and a Grad. Dip. Ed. He has published in peer-reviewed science journals and co-founded the New Zealand Aquaculture Magazine. Andrew has served as a watchkeeping officer in the navy. He has lectured and taught statistics, and marine and maritime studies at a technical institute. During this period, he consulted with the fisheries and aquaculture industry. Subsequently, Andrew contracted to the offshore oil and gas industry in environmental management. He then taught secondary school science and mathematics and is a future school's STEM industry focus advocate.