Cristina catches a ride from her pal Dr. Thomas when her car is buried under a mountain of snow. We'll call the old guy her "carpool buddy." He's not to be confused with her "sex friend." That would be the Mayo Clinic's head of cardio, Dr. Parker. Cristina's sex friend has been striving to get her carpool buddy to retire for some time now. But Dr. Thomas isn't going anywhere without a fight. He's also planning to take out a huge aneurysm around a woman's heart. Cristina is psyched to scrub in with him.
Cristina gets a little panicky when the aneurysm blows during the surgery. Dr. Parker orders Dr. Thomas to put the patient on bypass. That's not gonna happen. Dr. Thomas calmly works to fix the problem. He saves the woman's life, but it may not be enough to save the veteran doc's job. A follow-up operation is needed assure that the aneurysm doesn't return.
Meredith has pee on her shoe as she drives to work. It's a battle scar from Zola's potty training sessions. Mer pulls over to help a woman who is trapped under a car at the scene of nasty car accident. She screams at all the reluctant bystanders to help lift the car off the pinned lady. After a few tense moments, the injured woman takes a breath. She's alive. For now.