For seventy-six years, Tom Bell has lived in the wooden house on pilings his father built along Pelican Bend's Intracoastal channel. The rhythm of the tides has always been his clock, steadfast and predictable. But when calm, sunny-day flooding begins creeping over his bulkhead, Tom insists the water always recedes.

His thirteen-year-old neighbor, Nia, knows better. Armed with notebooks and a measuring tape, she charts a quiet, undeniable reality: the sea is rising.

Over fifteen grueling months, Tom watches his beloved coast unravel. Blistering heatwaves, unpayable insurance hikes, a sudden kitchen flood, and an unyielding winter freeze slowly strip away his defenses. With each passing tide, his daughter urges him to pack up and move inland, while his neighbor Owen works beside him to elevate pilings and solder bursting pipes. Yet it is the discovery of his father's decades-old, secret tide marks in the boat shed that delivers the hardest truth of all.

When Hurricane Lena bears down on the coast, Tom must confront the impossible choice between stubbornly clinging to a vanishing past and finding the grace to surrender what he loves.

Luminous, poignant, and deeply resonant, The Waterline is an unforgettable portrait of legacy, community resilience, and the courage it takes to let go.