Grey's Anatomy: Watch Season 11 Episode 4 Online

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We went back in time on Grey's Anatomy Season 11 Episode 4.

Titled "Only Mama Knows," the installment found Derek and Meredith's marriage at a serious crossroads, while it also featured Ellis Grey's past coming to light when her daughter watched old videos and read through her mother's journals.

What did she find in them?

Elsewhere, Maggie stunned the hospital with an unexpected announcement; Alex received a new set of responsibilities and Callie focused her attention on the Veterans' project, while things with Arizona continued to go south.

Is there any hope for these two?

Catch up on the latest developments when you watch Grey's Anatomy online:

Matt Richenthal is the Editor in Chief of TV Fanatic. Follow him on Twitter and on Google+.

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Grey's Anatomy Season 11 Episode 4 Quotes

Webber: I think I'm too late.
Bailey: No such thing.

They say we can repress our memories. I wonder if we're just keeping them safe somewhere because no matter how painful they are, they are our most valuable possessions. They made us who we are.

Meredith