The Entire Timeline Of Grey's Anatomy Explained

Happy times are on the horizon (for now) for Meredith and Derek after she gives birth to their second child, Derek Bailey Shepherd, in May of 2013.

Grey Sloan Memorial is an extraordinarily rough place to intern, and the new batch of would-be medical professionals is no exception. Heather and Richard are the victims of an electrocution during a major storm. Heather succumbs to her injuries and dies in July of 2013, while Richard finds himself on a long road to recovery.

Professionally speaking, Derek is at the top of his field in neurosurgery and has taken on an outstanding project to map the human brain. It doesn't go unnoticed; in early 2014, he receives a call from the president of the United States offering him more resources for the project. Derek accepts, but the job takes a toll on his marriage soon after. 

After an overly complicated and awkward fling with Jackson, April dates and gets engaged to paramedic Matthew Taylor (Justin Bruening). The two are all set and ready to walk down the aisle, at least right up until Jackson professes his undying love to April while she's at the altar. April elopes with Jackson instead of marrying Matthew in spring 2014. Not too long after, April tells Jackson she is pregnant with their child, who they name Samuel.

In her last appearance, Cristina takes a job offer in Zurich, Switzerland, to run Preston Burke's research hospital, leaving Seattle behind in mid-May 2014.