Season Page

For All Mankind – Season 5, Episode 4 Open Source

Play trailer

For All Mankind – Season 5, Episode 4

Open Source

Aired Apr 17, 2026

Drama

History

Sci-Fi

Action

Romance

Play Trailer

Watchlist

Watchlist

Tomatometer

Popcornmeter

Tomatometer

4 Reviews

Alex takes Ed's advice and finds a new project to focus on, a job at Helios.

Watch on Apple TV

Stream Now

Little Voice

77%

83%

Little Voice

Watchlist

TRAILER

for Little Voice

A Girl and an Astronaut

%

64%

A Girl and an Astronaut

Watchlist

우리들의 블루스

%

85%

우리들의 블루스

Watchlist

Masters of Sex

84%

85%

Masters of Sex

Watchlist

Até que a Vida nos Separe

%

%

Até que a Vida nos Separe

Watchlist

Discover more movies and TV shows.

View More

Ronald D. Moore

Creator

Matt Wolpert

Creator

Ben Nedivi

Creator

Joel Kinnaman

Edward Baldwin

Wrenn Schmidt

Margo Madison

Coral Peña

Aleida Rosales

View more photos

Sophie Brookover

New York Magazine/Vulture

Apr 20

4/5

Political intrigue and corporate espionage foment once more, and a bold new space mission gets underway.

Go to Full Review

Leanne Butkovic

IGN Movies

May 8

7/10

Decidedly a strong entry in Season 5, “Open Source” sort of feels like the “true” kickoff of the season.

Go to Full Review

Lacy Baugher

Tell-Tale TV

Apr 20

4.5/5

Maybe there’s a more fitting way to end the first episode of For All Mankind without Ed Baldwin than the lift-off of the ship that will take humanity on its next steps into the stars, but it’s hard to imagine what that might be.

Go to Full Review

Denis Kimathi

TV Fanatic

Apr 20

4.5/5

Shows can get bogged down by grief after a character like Ed dies, but luckily for us, this does not happen here.

Go to Full Review

Read all reviews

Synopsis

Alex takes Ed's advice and finds a new project to focus on, a job at Helios.

Creator: Ronald D. Moore, Matt Wolpert, Ben Nedivi
Executive Producer: Maril Davis, David Weddle, Bradley Thompson, Nichole Beattie, Seth Gordon
Network: Apple TV
Rating: TV-MA
Genre: Drama, History, Sci-Fi, Action, Romance
Original Language: English
Release Date: Apr 17, 2026