Grey's Anatomy · S06E04

Tainted Obligation

2009-10-08 · 43 min · ★ 4.0 (12) · TMDB

When Meredith and Lexie's father, Thatcher, returns to the hospital with a failed liver, it's up to Meredith to save his life. Meanwhile, Izzie empathizes with a patient riddled with tumors, as Mark, annoyed with Cristina's competitive zeal, tricks her into assisting on an unusual surgery.