Grey's Anatomy Previews: "I Saw What I Saw"

Three new clips from tomorrow night's episode of Grey's Anatomy, "I Saw What I Saw," depict an intense, combative scene at Seattle Grace. That's putting it mildly.

Words are exchanged. Accusations are made. Fingers are pointed.

A chaotic incident that results in 12 different accounts from 12 different doctors leaves everyone on edge and Richard searching for answers (and someone to blame).

When Alex hears a snide comment from a Mercy Wester, he loses it ...

Follow the jump for two more previews from the episode. Lexie, Cristina and others get grilled, while the animosity between the newcomers and old timers lingers ...