Grey's Anatomy

S04E02 Love/Addiction

A patient ends up in the hospital after dozing off in a dangerous environment. The explosion of a home laboratory in an apartment complex sends numerous victims to the ER. Alex starts looking into what happened by interviewing an elderly resident from the building. Meanwhile, Jane Burke arrives to handle the aftermath of her son's actions. Lexie makes an effort to connect with Meredith, while Callie struggles to adjust to her new role, leaving Bailey searching for ways to stay busy.