• Home
  • Movies
  • TV Shows
  • Anime
  • Live Sports
  • Home
  • Movies
  • TV Shows
  • Anime
  • Live Sports
Account

© 2026 Streamheaven. All rights reserved.

DMCA
Horizon
Loading…HorizonSeason 4 · Episode 1 — Sons of Cain
Previous

Season 4 · Episode 1S4 · E1Sons of Cain

Next episode
Download

Video not loading? Try another server.

Episodes

23 in 1967

  1. 1Sons of CainNow playing
  2. 2When Is a Body Dead? / How to Win Friends and Influence People60 min · 1967
  3. 3How Best to Make a Man / How Best to Make a Scientist60 min · 1967
  4. 4Dynamo - The Life of Michael Faraday60 min · 1967
  5. 5Migraine60 min · 1967
  6. 6How Safe Is Surgery?60 min · 1967
  7. 7Sleep and Dreams60 min · 1967
  8. 8The Shape of War to Come60 min · 1967
  9. 9Memory60 min · 1967
  10. 10Masters of the Desert60 min · 1967
  11. 11Cancer - The Search for the Virus60 min · 1967
  12. 12Cancer - The Smoker's Gamble60 min · 1967
  13. 13Science and the Supernatural60 min · 1967
  14. 14Hypnosis60 min · 1967
  15. 15The War of the Boffins60 min · 1967
  16. 17Aspects of Alcohol60 min · 1967
  17. 18Lords of the Sea60 min · 1967
  18. 19Will Art Last?60 min · 1967
  19. 20Air Safety: The Unknown Factor60 min · 1967
  20. 21The Life and Death of the Pine Processionary60 min · 1967
  21. 22Koestler on Creativity60 min · 1967
  22. 23The World of Ted Serios60 min · 1967
  23. 24Professor in Toyland60 min · 1967
S4 · E1Horizon

Sons of Cain

7.5Documentary19641h 0m

Horizon probes into whether aggressiveness is our birthright and can society live without violence?

Up nextWhen Is a Body Dead? / How to Win Friends and Influence PeopleS4 · E2 · 60 min

More like this

6.6

The World According to Jeff Goldblum

2019

7.1

NOVA

1974

8.0

The Universe

2007

7.7

Great Migrations

2010

7.5

Universe

2021

8.0

Animal

2021

7.3

Super/Natural

2022

7.6

Welcome to Earth

2021

7.5

How Do They Do It?

2006

8.1

Limitless with Chris Hemsworth

2022

6.5

The Circus

2016

7.5

30 for 30

2009

7.7

Down to Earth with Zac Efron

2020

8.1

Earth at Night in Colour

2020

7.0

American Masters

1986

8.6

Planet Earth III

2023

7.6

Secrets of the Penguins

2025

6.5

American Experience

1988

7.6

Baseball

1994

7.8

James May's Cars of the People

2014