Anthony S. Johnson

George O'Malley's mother comes to Seattle Grace for help after another hospital botches her surgery; a medical miracle inspires the residents; Jackson's suspicions about Mark and Lexie interfere with work.

A diamond heist at an up-market jewellery store uncovers an elaborate plot involving murder and extortion. Evidence points towards a known criminal, but Jane thinks the wealthy family who own the store may be involved. Elsewhere, Rigsby and Van Pelt consider their relationship.

Buffy, Xander and Dawn are unable to find Willow, who has inadvertently made herself invisible to her friends, and vice versa. Willow's return to Sunnydale is marred further by a demon, Gnarl, who relishes the skin of his victims.