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Season guide

The Nature of Things: Season 10

28 episodes Premiered Sep 24, 1969 Updated Oct 3, 2026
Previously on The Nature of Things

Season 10 Lore Primer

Key plot threads, lore context, and character stakes you need to remember before diving into this season.

  • ⚡ Directly follows the overarching narrative developments of The Nature of Things Season 9.
  • ⚡ Faction dynamics and core character alliances shift under escalating external stakes.
  • ⚡ Crucial mysteries introduced previously reach key turning points and narrative reckonings.
  • ⚡ Sets up serialized story arcs that build directly toward the climactic season finale.
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Season 10 Episodes

Episode Guide

🛡️ SPOILER SHIELD

Season 10 Progress Shield

Future titles & synopses blurred. Tap "Reveal" on any card to peek.
Binge Efficiency Engine

Season 10: Filler vs. Essential Canon

Filter episodes by narrative weight. Focus on essential mytharc and skip standalone side quests.

11%
89%
Mytharc (3): Crucial lore & season climaxes
Core (25): Character development & subplots
Side Quest (0): Standalone / filler
S10·E1 Mytharc

Danger: Man At Work - In The Balance

Sep 24, 1969

Part a six-part series on pollution. This program shows how comparatively new science of ecology has shown fate of life on earth lies in balance.

S10·E2 Core

Danger: Man At Work - The Urban Crisis

Oct 1, 1969

Part two of a six-part series on pollution. The ways man has succeeded, and failed, to duplicate in his cities checks and balances of natural environment.

S10·E3 Core

Danger: Man At Work - Water

Oct 8, 1969

The third program in a six-part series about pollution. This program shows how water is distributed.

S10·E4 Core

Danger: Man At Work - Air Pollution

Oct 15, 1969

Fourth program in a six-part series on pollution. The program show history of air pollution from advent of coal-burning in 14th Century.

S10·E5 Core

Danger: Man At Work - Pesticides

Oct 22, 1969

Fifth in a six-part series on pollution. All pesticides are poisonous in greater or lesser degrees.

S10·E6 Core

Danger: Man At Work - The Global Crisis

Oct 29, 1969

Final program of a sub-series on pollution and conservation. This program offers statements and observations by experts on extent of pollution in world today and what can be done t

S10·E8 Core

The Ages Of Man: A Breath Of Life

Nov 12, 1969

Every year, over 12,000 Canadians are born with serious inherited defects. Maureen McChesney, 12, is one.

S10·E9 Core

The Ages Of Man: The Attack On Cancer

Nov 26, 1969

This program focuses on research into effects of drugs on cancers in mice being conducted by internationally renowned cancer team at Toronto's Princess Margaret Hospital.

S10·E10 Core

The Ages Of Man: Drugs

Dec 10, 1969

A study of how medical researchers are using animals to determine effect of drugs such as marijuana and LSD, and.

S10·E11 Core

The Ages Of Man: The Cell

Dec 17, 1969

The theme of biology for past 20 years has been origin of biological constancy. The theme of next 20 years will be origin of biological diversity.

S10·E12 Core

The Ages Of Man: Arthritis

Dec 24, 1969

One quarter of all Canadians will be affected some time in their lives by arthritis.

S10·E14 Core

The Ages Of Man: Heart Disease

Jan 7, 1970

A look at coronary thrombosis which kills three out of ten adults; heart research in Canada.

S10·E16 Core

The Ages Of Man: A Definition Of Death

Jan 22, 1970

When is a man dead? Canadian physicians discuss medical, ethical and legal questions involved with death, organ transplants.

S10·E17 Core

Wild Africa: As It Was

Feb 25, 1970

A look at luxuriant parks and reserves where various species of wild animals and birds still survive.

S10·E18 Core

A Sense Of Time

Mar 19, 1970

First in a three-part series visiting some of Canada's 700 museums in an attempt to show how people of all ages use them for self-discovery.

S10·E19 Core

Wild Africa: Something New

Mar 25, 1970

Africa as it was during 18th and 19th centuries. Final program in this season's series.

S10·E20 Core

A Sense Of Time

Mar 26, 1970

Second in a series of three programs on Canada's museums. This program presents views from adults - those who feel past has no relevance to their lives, and others who find themsel

S10·E21 Core

A Sense Of Time

Apr 2, 1970

A look "backstage" at Ontario Science Center, Royal Ontario Museum and Old Fort Henry.

S10·E22 Core

Oceanography

May 14, 1970

Recent advances in oceanography.

S10·E23 Core

Continental Drift

May 21, 1970

The theory that Earth's continents are moving is examined.

S10·E24 Core

Sense Substitution

May 28, 1970

Research on new electronics and mechanical devices to help blind and deaf realize true sensory perception.

S10·E25 Core

Physical Sciences: Stellar Evolution

Jun 4, 1970

The latest observations of astronomers have turned up new kinds of stars; mysterious emanations from deep in space called pulsars and quasars.

S10·E26 Core

Physical Sciences: Making Waves

Jun 11, 1970

Research into physics of sound and hearing has caused increasing alarm among scientists and physicians about effects of high noise levels upon people, and destructive psychological

S10·E27 Mytharc

Physical Sciences: Energy Conversion

Jun 18, 1970

The physics of energy and problem of producing large quantities of energy with little pollution form basis of this program.

S10·E28 Mytharc

Physical Sciences: Laser

Jun 25, 1970

The qualities of laser and normal light are contrasted. Final program in series.

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