Story Structure — 5 Plot Phases
The Warning Beneath the Forecast
A storm surge devastates parts of Scotland while official forecasts misjudge its direction. Leonard's computer model reveals that the storm and spring tide could create an unprecedented surge.
Key Events
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Storm Surge Forms — A storm surge travels between the United Kingdom and mainland Europe during a spring tide.
Location: United Kingdom and mainland Europe
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Scotland Is Devastated — Several parts of Scotland, including Wick, are devastated by rising sea levels.
Location: Wick and Scotland
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Forecast Miscalculation — The initial forecast wrongly predicts that the storm will head toward the Netherlands. Characters: Leonard Morrison
Location: Met Office
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Leonard Challenges Forecast — Leonard's independent model predicts that the storm and spring tide will merge. Characters: Leonard Morrison
Location: Leonard's research facilities
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Forty-Six Metre Surge — The model predicts a forty-six-metre surge threatening London. Characters: Leonard Morrison
Location: London flood-risk analysis
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Forecast Meetings Fail — Mis-informed meetings waste valuable time as officials rely on inaccurate forecasts. Characters: Leonard Morrison
Location: Government meeting rooms
Three Hours to Evacuate
COBRA realizes that central London will be flooded within three hours and declares a state of emergency. Patricia coordinates a massive evacuation as panic and congestion spread through the city.
Key Events
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Forecast Meetings Fail — Mis-informed meetings waste valuable time as officials rely on inaccurate forecasts. Characters: Leonard Morrison
Location: Government meeting rooms
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COBRA Learns the Deadline — Authorities realize that central London will be inundated within three hours. Characters: Leonard Morrison, Patricia Nash, General Ashcroft
Location: COBRA, Whitehall
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Emergency Is Declared — A state of emergency is declared, triggering panic and severe congestion. Characters: Patricia Nash, General Ashcroft
Location: Whitehall
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Mass Evacuation Begins — Authorities and military forces struggle to evacuate more than one million people. Characters: Patricia Nash, General Ashcroft
Location: Central London
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Barrier Is Raised — The barrier is raised as the approaching tsunami threatens the city. Characters: Leonard Morrison
Location: Thames Barrier
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Barrier Is Overwhelmed — The tsunami overwhelms the barrier and the flood sweeps into London. Characters: Leonard Morrison
Location: Thames Barrier
The Barrier Breaks
The Thames Barrier is overwhelmed and floodwater enters London. Survivors struggle through the Underground and escape into flooded Trafalgar Square while the city suffers catastrophic destruction.
Key Events
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Barrier Is Overwhelmed — The tsunami overwhelms the barrier and the flood sweeps into London. Characters: Leonard Morrison
Location: Thames Barrier
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City Is Inundated — Floodwater destroys everything in its path across the city.
Location: London
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Underground Survivors Gather — Survivors gather underground while floodwater approaches the station.
Location: London Underground
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Station Door Is Sealed — One maintenance worker seals a door to protect the others but drowns.
Location: London Underground station
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Escape To Trafalgar Square — The survivors escape through a vertical shaft into the flooded square.
Location: Trafalgar Square
Two Plans for Survival
Leonard believes the turning tide can reverse the water flow, while Ashcroft seeks an air strike against the barrier. Patricia opposes the military strategy and supports giving the scientific plan a chance.
Key Events
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Water Begins Receding — Leonard concludes that the turning tide may allow the water flow to be reversed. Characters: Leonard Morrison, Patricia Nash, General Ashcroft
Location: Thames Barrier
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Air Strike Proposed — Ashcroft seeks an air strike to destroy the barrier and force water out of London. Characters: Patricia Nash, General Ashcroft
Location: Government command rooms
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Hopkins Dies — Overwhelmed by guilt over the casualties, the forecaster disappears and dies by suicide.
Location: London
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Reverse Controls Discovered — The controls needed to reverse the flow are found underwater and require a fatal manual activation. Characters: Leonard Morrison
Location: Thames Barrier
The Final Reversal
The underwater controls require a person to activate them manually. Leonard sacrifices himself, the air strike is aborted, and the receding flood leaves London facing loss and recovery.
Key Events
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Reverse Controls Discovered — The controls needed to reverse the flow are found underwater and require a fatal manual activation. Characters: Leonard Morrison
Location: Thames Barrier
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Leonard Activates Controls — Leonard activates the underwater controls and drowns, reversing the flood flow. Characters: Leonard Morrison, Patricia Nash, General Ashcroft
Location: Thames Barrier
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Air Strike Is Aborted — The air strike is aborted as the flood begins to recede. Characters: Patricia Nash, General Ashcroft
Location: London command center
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London Begins Recovery — A broadcast assures survivors that London will survive and recover after the disaster. Characters: Patricia Nash
Location: Flooded London