Shannon Welles

As JD is thrown into the chaotic world of hospital life, we not only get to see the quirky characters that he encounters, but also hear the humorous commentary of thoughts streaming through JD's head.

Cristina looks to Meredith for advice as she assesses her future at the hospital. Derek and Amelia work together on a difficult surgery involving conjoined twins. Meanwhile, Jo is spread too thin when she tries to work on several cases at once and Stephanie realizes the truth about Bailey's bubble boy case.

Burt and Virginia introduce Natesville to a new bartering system called Burt Bucks, which looks an awful lot like a pyramid scheme.

Virginia makes a deal with her father (Jeffrey Tambor) -- she'll plan his wedding if he pays Hope's college tuition.

Sookie enlists the help of Eric in her search for the missing Bill, while Sam begins his search for his birth parents. Tara falls into despair following Eggs's death and attempts suicide.

After Shawn and Jack argue about their father's unexpected return, the man has a heart attack and is hospitalised.