Hua Yang and Afa are two competitive freediving athletes. One is focused on breaking the deepest record in Asia, while the other aspires to claim the crown of Taiwan’s top freediver. Both received invitations to compete in the prestigious Blue Hole Vertical Blue Depth Competition. This documentary follows their journey from land to underwater,capturing their contrasting styles and perspectives as they merge in the tranquil yet mysterious blue depths.

華揚跟阿先是兩位自由潛水競賽選手，一位專注在亞洲最深的紀錄、一位渴望得到台灣第一的王冠。兩人同時收到來自世界頂尖賽場「藍洞垂直藍深度賽」的邀請。鏡頭追蹤他們在修練之路上，從陸上到水下，兩人風格各異的行事風格與水下世界觀交織，交融在靜謐也幽暗的藍色水域之中。