Mary Joy

President Meyer travels to Iran, where an American reporter is being detained.

When word spreads that Lorelai was the one who proposed, Luke is embarrassed.

A psychotic patient threatens Abby; Dr. Weaver suspects a woman of poisoning her baby.

Sipowicz learns his son's older fiancée has been unfaithful; a homeless man is suspected in a 9-year-old's murder.

Galavan and Penguin join forces with a dangerous family in Gotham. Then, as the rivalry between the Waynes and the Galavans resurfaces, Gordon struggles to maintain order in the city.

Addison takes temporary leave from Seattle Grace and makes a road trip to Los Angeles in order to visit some old friends from medical school. As Meredith continues to bond with her stepmother, Susan, Cristina reluctantly plans her wedding with the assistance of her mother, Helen, and Burke's mother, Mama Jane. Meanwhile, Derek must perform emergency surgery on Ava/Jane Doe, as Alex continues his unfailing bedside manner with her.