Samantha Quan

A plumbing leak becomes a flood, causing chaos at Seattle Grace; the chief tries to implement new teaching policies; George tries to take his residency exam again; Derek hopes to move Meredith's roommates out of her house.

When the remains of a storm chaser are found, it seems that they died while following a tornado. But the team soon uncover evidence to suggest that he was murdered.

Tony sees a former police informant he believed to be dead, when the team investigate the death of a sailor outside Baltimore.

Hetty and the team continue searching for an elusive book that has the attention of foreign security agencies.

Lisbon and Jane enter the murderously competitive world of academia when a research student pays the ultimate price for discovering a new species of moth.

An Officer Down call turns out to be a male stripper dressed like a cop. Castle and Beckett explore the world of male strip clubs and struggling actors.