Plot Analysis Summary
An expedition crosses a dangerous and unexplored river system despite accidents, desertion, mutiny, and loss.
Story Structure — 5 Plot Phases
The Unmapped River
The film establishes the Colorado River as an unexplored and feared region. A former Northern major organizes an expedition with nine men and four boats.
Key Events
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Unexplored Colorado River — The Colorado River remains marked as unexplored and is avoided because it is believed to be dangerous.
Location: United States
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Exploration Era Advances — Explorers, soldiers, and trappers have made much of the American territory known.
Location: United States
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Former Major Introduced — A scientifically educated former Northern major prepares to investigate the unmapped river.
Location: United States
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Civil War Wound — The expedition leader is missing an arm after being wounded at the Battle of Shiloh.
Location: Battle of Shiloh
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Nine Men Gather — The expedition leader gathers nine men, including a brother affected by Southern captivity.
Location: United States
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Four Boats Secured — Four boats are obtained for the dangerous journey down the Colorado River.
Location: United States
The River Tests Them
The expedition begins its difficult journey through the Colorado River. Whiskey-drunk occupants destroy one boat, increasing the party's vulnerability.
Key Events
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Expedition Begins — The party launches its long expedition to explore the Colorado River.
Location: Colorado River
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River Journey Intensifies — The expedition continues through a long and difficult river journey.
Location: Colorado River
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Whiskey-Fueled Disorder — Occupants who have been drinking whiskey cause disorder during the journey.
Location: Colorado River
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Boat Destroyed — One boat is destroyed because of the whiskey-drunk occupants.
Location: Colorado River
Warnings and Division
A trapper warns the expedition about terrible waterfalls. One member leaves, while three others mutiny and choose an overland route.
Key Events
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Trapper Encounter — The expedition meets a trapper who is married to an Indigenous woman and is a friend of the leader.
Location: Colorado River
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Waterfall Warning — The trapper warns the party about terrible waterfalls ahead.
Location: Colorado River
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First Abandonment — One member abandons the expedition after hearing the warning about the waterfalls.
Location: Colorado River
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Mutiny Begins — Three other members mutiny and decide to continue the journey overland alone.
Location: Colorado River
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Overland Separation — The mutineers separate from the main party and travel overland independently.
Location: Land beside the Colorado River
Death on the Overland Route
The separated mutineers are killed after being blamed for a woman's death. The remaining expedition continues despite the losses.
Key Events
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Overland Separation — The mutineers separate from the main party and travel overland independently.
Location: Land beside the Colorado River
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Fatal Indigenous Encounter — The three separated men are killed by Indigenous people after being accused of killing a woman.
Location: Land beside the Colorado River
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Expedition Presses On — The remaining expedition continues despite the destroyed boat, abandonment, mutiny, and deaths.
Location: Colorado River
Lake Mead Fulfillment
The surviving expedition reaches the point where the Colorado River enters Lake Mead. The exploration ends as a successful achievement.
Key Events
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Lake Mead Approached — The expedition reaches the point where the Colorado River flows into Lake Mead.
Location: Colorado River
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River Destination Found — The explorers locate the Colorado River's outlet into Lake Mead.
Location: Lake Mead
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Great Feat Completed — The expedition concludes successfully after completing its difficult exploration.
Location: Lake Mead