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Grey's Anatomy S5E4 — Brave New World
8.2
Grey's Anatomy•Season 5•Episode 4

Brave New World

8.2/10 · 1,623 votesOct 16, 200843 min

Ranked #16 of 24 in Season 5•−0.2 vs season avg

Discussion

Meredith is sent into a state of panic when Derek finds her mother's diary in the house. Meanwhile, Callie stresses while preparing for her first date with Erica. Later, Cristina stumbles across a part of the hospital no one has ever seen before.

Directed byEric Stoltz
Written byDebora Cahn
Previous episodeE3 · Here Comes the FloodNext episodeE5 · There's No 'I' in Team
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Season 5 Episodes24

Dream a Little Dream of Me (1) stillE1 8.2

Dream a Little Dream of Me (1)

Dream a Little Dream of Me (2) stillE2 8.2

Dream a Little Dream of Me (2)

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Brave New World stillE4 8.2Now viewing

Brave New World

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There's No 'I' in Team

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Rise Up stillE7 8.3

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These Ties That Bind

In the Midnight Hour stillE9 8.2

In the Midnight Hour

All by Myself stillE10 8.2

All by Myself

Wish You Were Here stillE11 8.1

Wish You Were Here

Sympathy for the Devil stillE12 8.6

Sympathy for the Devil

Stairway to Heaven stillE13 9.0

Stairway to Heaven

Beat Your Heart Out stillE14 8.2

Beat Your Heart Out

Before and After stillE15 8.1

Before and After

An Honest Mistake stillE16 8.5

An Honest Mistake

I Will Follow You Into the Dark stillE17 8.5

I Will Follow You Into the Dark

Stand By Me stillE18 8.8

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Elevator Love Letter stillE19 8.9

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Sweet Surrender stillE20 8.5

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What a Difference a Day Makes stillE22 9.2

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Here's to Future Days stillE23 8.8

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Now or Never stillE24 9.5

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Cast12

Ellen Pompeo

Ellen Pompeo

Meredith Grey

Chandra Wilson

Chandra Wilson

Miranda Bailey

Sandra Oh

Sandra Oh

Cristina Yang

Justin Chambers

Justin Chambers

Alex Karev

James Pickens Jr.

James Pickens Jr.

Richard Webber

Patrick Dempsey

Patrick Dempsey

Derek Shepherd

Kevin McKidd

Kevin McKidd

Owen Hunt

Katherine Heigl

Katherine Heigl

Izzie Stevens

Sara Ramirez

Sara Ramirez

Callie Torres

Eric Dane

Eric Dane

Mark Sloan

Chyler Leigh

Chyler Leigh

Lexie Grey

T. R. Knight

T. R. Knight

George O'Malley

Crew2

Debora Cahn

Debora Cahn

Writer

Eric Stoltz

Eric Stoltz

Director

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Episode Summary

"Brave New World" is episode 4 of Grey's Anatomy season 5. It scored 8.2/10 from 1,623 votes, ranking #16 of 24 episodes this season (season average 8.4). Directed by Eric Stoltz and written by Debora Cahn, it aired on October 16, 2008.

Next: E5 · There's No 'I' in TeamBest of Season 5