
Derek's patient asks for help sleeping; Richard listens in on Maggie & Meredith's argument; Maggie tells Richard she was hoping connect with Meredith before she told her that they're sisters.
Callie & Arizona work on two teenage patients from the van; Dr. Herman suggests Arizona apply for a fellowship; In surgery, Amelia & Ben question Derek about Meredith and plans.
Owen's patient is reunited with his wife and daughter; Alex comes to Meredith, he offers to be her person; Richard & Avery converse over Avery's impending fatherhood and Richard & Katherine's breakup.
Jo complains to Stephanie about Meredith kicking her out of bed; Meredith talks to Avery about her problems with Derek; Derek tells Meredith he's not moving to D.C.
Callie & Arizona work on two teenage patients that were having sex when a gurney fell on their van, as one of their mom's take them to task; Dr. Herman suggests Arizona apply for a fellowship; during surgery, Amelia & Ben question Derek over what's going on with him and Meredith.
Owen's patient is reunited with his wife and daughter; Alex offers to be Meredith's person; Richard comments on Avery's impending fatherhood.
The doctors and nurses dance around to music during a surgery; Maggie accidentally lets slip that Alex got a seat on the hospital board.
While Alex takes a shower, Meredith rants to him about Maggie's declaration; Jo complains to Stephanie about Meredith taking over her boyfriend.
Maggie reacts poorly to Richard revelation; Derek & Meredith argue; Alex & Bailey make their presentations to the board; Bailey is awarded the board seat.
Avery talks to Callie about her blow-up with Owen, then says he can help her with the robot leg candidate; Maggie tells Richard how much fun she had on their surgery; Richard runs after Maggie, but fails to find her.
Callie & Meredith talk about their relationship problems over drinks at Joe's.
Derek & Meredith shower together as Maggie & Richard arrive for dinner; Maggie explains to Richard why she is upset with him.
Derek explains to Meredith why he invited both Maggie & Richard to dinner; Alex tells Arizona to 'suck it up'; Jo calms down Melissa when she wakes suddenly.
The doctor's hang out at Alex's house, then Arizona arrives with a suitcase; Amelia returns home to find Derek waiting up for her.
Stephanie tells April she's sorry; Maggie confronts Richard about siding with Derek against her; Alex explains his open house policy to Jo; Callie & Owen work with Rick as he tries out his new leg.
Arizona & Callie console each other; Meredith & Maggie work on Holly as Derek & Richard watch from the viewing room.
Owen asks Meredith if she has talked to Cristina about her problems with Derek; Stephanie asks Brooke's husband if she has any medical conditions; Dr. Herman tells Arizona of the many previous times she's been told there is hope for her condition.
Callie goes over to their tech rep and encourages her to give Owen a chance, then discovers she's interested in women.
Adrian's surgery continues after the removal of her tumor; Callie and Owen discuss how they're not ready to start dating; Jo 'pauses' her time with Alex to answer a text from Stephanie; Owen remembers being with Cristina; Meredith calls Maggie.
Amelia joins Meredith, Bailey & Maggie while they wait for their tumor to print; Meredith comments on how strange it feels to sleep alone, then the others chime in with their experiences.
Meredith sleeps with both the kids in her room; Alex misses a message while fooling around with Jo; April & Jackson wait for a doctor; Dr. Herman undergoes a brain scan.
Dr. Herman calls Arizona a 'dirty girl'; Amelia, Callie & Jo operate on Hillary and comment on her avoidance of Todd's proposal.
Bailey keeps watch as Ben & Curt scatter their father's ashes; Jo steals the shower from Arizona; Arizon yells at Alex about the broken shower.
Arizona expresses concern over Herman dying and Callie comforts her; Owen yells at Amelia for exposing herself to radiation as she finishes placing the seeds in Herman's brain; Avery tells April she needs to check on a patient; Stephanie finally wakes up, then Amelia lets her close; Amelia walks out of the O.R. and breaks down in the hallway.
Various staff member check on Herman; Arizona & Bailey discharge Glenda from the hospital; Owen tells Amelia to stop watching video of the surgery; Stephanie notices that Herman may have had a stroke; Callie reassures Arizona that Herman will wake up.
Ben lets Bailey know he called his sister, then apologizes to her; Maggie makes a date for drinks; Amerlia & Owen kiss in the on-call room; Meredith tells Alex she doesn't need Derek, then phones him and has a woman answer the phone.
Maggie tells Callie she has a hard time dating, then Callie says she should go for it anyway; Jo reveals that Meredith is on a perfect streak with her surgeries and that it started when Derek left.
Owen, Amelie & Richard sing to give Ruby a rhythm so she can perform CPR on her mom.
Callie thanks Arizona for warning her about Heather; Bailey tells Jo that how much she cares about her patients will make her a great doctor; Alex & Jo head home; Amelia joins Owen in the on-call room and they are once again interrupted by pages; Martin recites a poem to his wife; Richard informs Maggie that Ellis had Alzheimer's, then Maggie admits she already knew she had genetic markers for Alzheimer's; Meredith finds Derek at her door.
Jackson tells Avery how much trouble he's had getting over their son's death, then they end up having sex in their car; Callie, Maggie & Alex try to give Meredith other options for why a woman is answering Derek's phone.
April & Jackson make out in the supply closet; Owen & Amelia are interrupted by continuous pages; Meredith calls Derek but gets his messaging service; Callie kisses her date goodnight and is seen by Arizona.
Owen joins his mom's lover, John, in the waiting room; Meredith & Alex continue to work on Danny, then end up informing his sister of his death; flashback to Renee & Derek having a breakthrough in her research then kissing; Alex follows Meredith outside and hugs her.
Avery tells April that he wants to pass on what he learned from Sloane; Derek tells Amelia he doesn't want to keep missing things in his life; Amelia admits she's sacred she's falling in love with Owen.
Bailey passes Brett's kidney to Ben; Meredith removes Jared's kidney; Owen watches as Brett's organs leave the hospital via police car.
Richard & Catherine discuss taking another chance on their relationship; Marissa tells Callie that she played golf because she loved it.
Stephanie tells Jo she's realized she doesn't want a career in urology; Alex sees Maggie leaving with Ethan; Owen asks Amelia what's going on with her; Meredith gets a call saying Derek missed his appointment with the White House officials.
Flashback to Derek telling Meredith that Zola wants a car and that he wants to add to their family.
Derek tells Alana about the first time he kissed Meredith; the group hears sirens approaching; Derek waves goodbye to Sarah & Winnie, then starts to head home.
Winnie tells Derek's doctor that he's a surgeon; Derek is rushed into surgery.
Meredith rushes to work with the kids; Derek heads to the airport; Bailey, Amelia & April perform surgery while talking to Derek on the phone; Derek gets passed by a speeding sports car, which then causes an accident in front of him.
Derek's respirator is turned off; Meredith tells Derek that she & the kids will be okay.
Derek's doctors realizes he has head trauma; the neurosurgeon finally arrives; Meredith sees the police drive up to the house; Meredith imagines of being reunited with Derek.
Staff react to the news of Derek's death; Derek's funeral & wake; Meredith continues to have flashes of the carousel; Bailey tells Ben not to let her be hooked up to a respirator.
Callie & Sofia decorate for Christmas; Jackson tries to get a hold of April; Meredith tells Zola she needs to sleep before Santa will come; montage of the carousel.
Meredith returns home with her kids & Alex; Meredith tries to get used to the house without Derek; Amelia holds her new niece; Meredith catches up with Alex & Maggie, then returns to work.
Meredith remembers Ellis accusing her of being ordinary; montage of Meredith & Derek moments.
Richard welcomes the new interns to the hospital; flashback to the interns being welcomed in the pilot; the doctors comment on the new 'chicks and ducks'.
Maggie, Meredith, Amelia & April debate how to save the car crash victim, Keith; two of the interns talk about the accident, causing their patient, Joan, to start freaking out.
Meredith tells Maggie & Amelia that Derek would have loved the reception, then she drags them onto the dance floor; dance montage.
Jo asks Alex to sell Meredith the house and move into a loft with her, so they can have their own place; Stephanie teaches her interns; Arizona comforts April; Owen sits with Amelia as she listens to Derek's last voice mail message.
Meredith asks Alex if he's talked to Jo about her and the kids moving in; Meredith introduces Keith to his newborn son.