Where can I watch “Cosmos” Season 2 Episode 4 online?

This page provides episode info and a legal-only guide. It does not host streams or downloads. Check official platforms and licensed services for availability in your region (US first).

Do I need to watch earlier episodes before “Vavilov”?

Watching earlier episodes in season 2 helps you follow the plot and character arcs leading into this episode.

Watch Cosmos Season 2 Episode 4 Online

“Vavilov” — Watch "Cosmos" Season 2 Episode 4 online in HD for free. Check streaming providers, cast, and episode details.

Mar 16, 2020 Season 2 Episode 4 43 min TV-G

8.5 ★ ★ ★ ★ ★

13 votes

Cosmos Season 2

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Where can I watch "Vavilov" online?

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Season 2 Episode 4 — Aired on Mar 16, 2020 • runs about 43 minutes.

Directed by Ann Druyan.

Written by Ann Druyan, Brannon Braga.

Notable cast/guest names in this episode include Neil deGrasse Tyson, Ann Druyan.

This page includes 4 official still(s) (when available) plus legal availability links.

Looking for “watch Cosmos Season 2 Episode 4 online”? This is a legal-only guide with synopsis, stills, and navigation for this season.

Synopsis

In the first half of the 20th century pioneering geneticist Nikolai Vavilov traveled 5 continents assembling a treasury of the worlds seeds. He dreamed that science could be the means to end hunger. His refusal to tell a scientific lie cost him his life. The heroism of his colleagues and its direct impact on your life is one of the most stirring stories in the history of science.