A passenger ferry is burning in a Force Ten North Sea storm. Six hundred and eighty people are aboard—and abandoning ship could kill more of them than staying.

When fire cripples the North Star, junior engineer Leah Mercer is trapped inside a cascading machinery casualty: propulsion is gone, electrical power is failing, seawater is spreading through the lower decks, and the ferry is beginning to list.

Ashore, senior coastguard rescue coordinator Daniel Mercer must decide where Britain's limited helicopters, lifeboats and rescue vessels can save the most lives.

Leah is his estranged daughter.

As another emergency puts survivors directly into the freezing sea, Daniel faces decisions that may leave Leah without the rescue resources she needs. Below decks, Leah faces choices of her own, where protecting hundreds of passengers can mean surrendering her safest route out.

With darkness closing in and the storm stripping away every easy option, survival depends not on one spectacular rescue—but on getting a sequence of imperfect decisions exactly right.

The Lee Side is a tense, atmospheric maritime disaster thriller built on rescue operations, shipboard engineering and physical survival.