Grey's Anatomy

Meredith faces the repercussions of messing with the medical trial.

Meredith and Derek's relationship concerns Zola's adoption counselor.

The chief makes a decision that shocks everyone at Seattle Grace.

A stampede at a comic book convention leads to an influx of patients.

The residents try to impress Jackson's mother, Catherine Avery.

Meredith tries to get Derek interested in a patient's rare brain tumor.

Owen organizes a baseball game against Seattle Presbyterian.

Jackson's suspicions about Mark and Lexie interfere with work.

Teddy is called away on another case, as Henry is brought in for surgery.

Teddy asks Cristina to help with an O.R. patient.

The doctors form two teams to operate on conjoined twins.

Richard's 10,000th surgery is a liver transplant for two sisters.

Meredith dreams of what her life would have been.

Callie surprises Arizona with a romantic evening.

Amelia arrives at Seattle Grace to beg Derek to help with a case.

As Adele's condition deteriorates, Richard considers making a change.

Derek asks Meredith to work with him in neuro again.

An escaped lion puts lives and relationships in danger.

Cristina makes Owen tell her about the intimate details of his affair.

Richard faces a disturbing realization while visiting Adele.

The residents travel to San Francisco for the oral boards.

The residents agonize over their upcoming exam results.

The residents choose their future positions.

A dangerous situation leaves the doctors fighting to stay alive.