Gu Chenzhou, a former researcher burdened with enormous debts, spends everything he has to purchase the abandoned Yuanhang in order to fulfill his master's dying wish. Unexpectedly, he discovers military-grade special alloy hidden in the hull and secrets surrounding the Deep Blue Project, which has been buried for twenty years. Breaking through the encirclement and schemes of multiple powerful factions, he puts aside past grudges and joins forces with former rivals. Step by step, he uncovers a scientific expedition conspiracy, discovers the truth about his identity, and ultimately revives the Deep Blue Project, leading a new generation of scientific research vessels into the deep sea.